http://addi.ehu.es/handle/10810/15549
http://addi.ehu.es/handle/10810/15550
http://addi.ehu.es/handle/10810/15552
http://addi.ehu.es/handle/10810/15555
http://addi.ehu.es/handle/10810/15556
http://addi.ehu.es/handle/10810/15558
http://addi.ehu.es/handle/10810/15557
http://addi.ehu.es/handle/10810/15566
http://addi.ehu.es/handle/10810/15567
http://addi.ehu.es/handle/10810/15611
http://addi.ehu.es/handle/10810/15612
http://addi.ehu.es/handle/10810/15708
http://addi.ehu.es/handle/10810/15736
http://addi.ehu.es/handle/10810/15734
http://addi.ehu.es/handle/10810/15740
http://addi.ehu.es/handle/10810/15735
http://addi.ehu.es/handle/10810/15816
http://addi.ehu.es/handle/10810/15744
http://addi.ehu.es/handle/10810/15751
http://addi.ehu.es/handle/10810/15821
http://addi.ehu.es/handle/10810/15764
http://addi.ehu.es/handle/10810/15788
http://addi.ehu.es/handle/10810/15792
http://addi.ehu.es/handle/10810/15790
http://addi.ehu.es/handle/10810/15791
http://addi.ehu.es/handle/10810/15794
http://addi.ehu.es/handle/10810/15796
http://addi.ehu.es/handle/10810/15797
http://addi.ehu.es/handle/10810/15822
http://addi.ehu.es/handle/10810/15846
http://addi.ehu.es/handle/10810/15924
http://addi.ehu.es/handle/10810/15942
http://addi.ehu.es/handle/10810/15945
http://addi.ehu.es/handle/10810/15956
http://addi.ehu.es/handle/10810/16088
http://addi.ehu.es/handle/10810/16089
http://addi.ehu.es/handle/10810/16121
http://addi.ehu.es/handle/10810/16119
http://addi.ehu.es/handle/10810/16266
http://addi.ehu.es/handle/10810/16135
http://addi.ehu.es/handle/10810/16128
http://addi.ehu.es/handle/10810/16129
http://addi.ehu.es/handle/10810/16131
http://addi.ehu.es/handle/10810/16133
http://addi.ehu.es/handle/10810/16134
http://addi.ehu.es/handle/10810/16140
http://addi.ehu.es/handle/10810/16142
http://addi.ehu.es/handle/10810/16243
http://addi.ehu.es/handle/10810/16247
http://addi.ehu.es/handle/10810/16165
http://addi.ehu.es/handle/10810/16163
http://addi.ehu.es/handle/10810/16164
http://addi.ehu.es/handle/10810/16174
http://addi.ehu.es/handle/10810/16166
http://addi.ehu.es/handle/10810/16167
http://addi.ehu.es/handle/10810/16169
http://addi.ehu.es/handle/10810/16173
http://addi.ehu.es/handle/10810/16180
http://addi.ehu.es/handle/10810/16182
http://addi.ehu.es/handle/10810/16183
http://addi.ehu.es/handle/10810/16186
http://addi.ehu.es/handle/10810/16210
http://addi.ehu.es/handle/10810/16196
http://addi.ehu.es/handle/10810/16198
http://addi.ehu.es/handle/10810/16197
http://addi.ehu.es/handle/10810/16199
http://addi.ehu.es/handle/10810/16200
http://addi.ehu.es/handle/10810/16201
http://addi.ehu.es/handle/10810/16209
http://addi.ehu.es/handle/10810/16339
http://addi.ehu.es/handle/10810/19638
http://addi.ehu.es/handle/10810/20725
http://addi.ehu.es/handle/10810/16211
http://addi.ehu.es/handle/10810/16214
http://addi.ehu.es/handle/10810/16219
http://addi.ehu.es/handle/10810/16221
http://addi.ehu.es/handle/10810/16222
http://addi.ehu.es/handle/10810/16224
http://addi.ehu.es/handle/10810/16228
http://addi.ehu.es/handle/10810/16231
http://addi.ehu.es/handle/10810/16233
http://addi.ehu.es/handle/10810/16236
http://addi.ehu.es/handle/10810/16237
http://addi.ehu.es/handle/10810/16240
http://addi.ehu.es/handle/10810/16251
http://addi.ehu.es/handle/10810/16253
http://addi.ehu.es/handle/10810/16255
http://addi.ehu.es/handle/10810/16259
http://addi.ehu.es/handle/10810/16263
http://addi.ehu.es/handle/10810/16315
http://addi.ehu.es/handle/10810/16274
http://addi.ehu.es/handle/10810/16275
http://addi.ehu.es/handle/10810/16276
http://addi.ehu.es/handle/10810/16277
http://addi.ehu.es/handle/10810/16278
http://addi.ehu.es/handle/10810/16280
http://addi.ehu.es/handle/10810/16281
http://addi.ehu.es/handle/10810/16282
http://addi.ehu.es/handle/10810/16283
http://addi.ehu.es/handle/10810/16285
http://addi.ehu.es/handle/10810/16286
http://addi.ehu.es/handle/10810/16287
http://addi.ehu.es/handle/10810/16289
http://addi.ehu.es/handle/10810/16314
http://addi.ehu.es/handle/10810/16295
http://addi.ehu.es/handle/10810/16290
http://addi.ehu.es/handle/10810/16291
http://addi.ehu.es/handle/10810/16294
http://addi.ehu.es/handle/10810/16297
http://addi.ehu.es/handle/10810/16299
http://addi.ehu.es/handle/10810/16300
http://addi.ehu.es/handle/10810/16301
http://addi.ehu.es/handle/10810/16302
http://addi.ehu.es/handle/10810/16305
http://addi.ehu.es/handle/10810/16306
http://addi.ehu.es/handle/10810/16307
http://addi.ehu.es/handle/10810/16308
http://addi.ehu.es/handle/10810/16310
http://addi.ehu.es/handle/10810/16312
http://addi.ehu.es/handle/10810/16313
http://addi.ehu.es/handle/10810/19578
http://addi.ehu.es/handle/10810/14695
http://addi.ehu.es/handle/10810/15064
http://addi.ehu.es/handle/10810/14706
http://addi.ehu.es/handle/10810/14733
http://addi.ehu.es/handle/10810/14734
http://addi.ehu.es/handle/10810/14738
http://addi.ehu.es/handle/10810/14739
http://addi.ehu.es/handle/10810/14740
http://addi.ehu.es/handle/10810/14741
http://addi.ehu.es/handle/10810/14803
http://addi.ehu.es/handle/10810/15003
http://addi.ehu.es/handle/10810/20734
http://addi.ehu.es/handle/10810/15070
http://addi.ehu.es/handle/10810/15082
http://addi.ehu.es/handle/10810/15087
http://addi.ehu.es/handle/10810/15089
http://addi.ehu.es/handle/10810/15065
http://addi.ehu.es/handle/10810/15083
http://addi.ehu.es/handle/10810/15093
http://addi.ehu.es/handle/10810/15202
http://addi.ehu.es/handle/10810/15111
http://addi.ehu.es/handle/10810/15203
http://addi.ehu.es/handle/10810/15200
http://addi.ehu.es/handle/10810/15193
http://addi.ehu.es/handle/10810/15189
http://addi.ehu.es/handle/10810/15201
http://addi.ehu.es/handle/10810/15192
http://addi.ehu.es/handle/10810/15122
http://addi.ehu.es/handle/10810/15412
http://addi.ehu.es/handle/10810/15342
http://addi.ehu.es/handle/10810/16565
http://addi.ehu.es/handle/10810/15182
http://addi.ehu.es/handle/10810/15183
http://addi.ehu.es/handle/10810/15326
http://addi.ehu.es/handle/10810/15294
http://addi.ehu.es/handle/10810/15282
http://addi.ehu.es/handle/10810/15319
http://addi.ehu.es/handle/10810/15325
http://addi.ehu.es/handle/10810/15348
http://addi.ehu.es/handle/10810/15359
http://addi.ehu.es/handle/10810/15424
http://addi.ehu.es/handle/10810/15371
http://addi.ehu.es/handle/10810/15383
http://addi.ehu.es/handle/10810/15410
http://addi.ehu.es/handle/10810/15444
http://addi.ehu.es/handle/10810/15448
http://addi.ehu.es/handle/10810/15486
http://addi.ehu.es/handle/10810/15462
http://addi.ehu.es/handle/10810/17933
http://addi.ehu.es/handle/10810/18953
http://addi.ehu.es/handle/10810/15568
http://addi.ehu.es/handle/10810/15529
http://addi.ehu.es/handle/10810/15547
http://addi.ehu.es/handle/10810/15554
http://addi.ehu.es/handle/10810/15559
http://addi.ehu.es/handle/10810/15573
http://addi.ehu.es/handle/10810/15575
http://addi.ehu.es/handle/10810/15574
http://addi.ehu.es/handle/10810/15571
http://addi.ehu.es/handle/10810/15572
http://addi.ehu.es/handle/10810/15577
http://addi.ehu.es/handle/10810/15576
http://addi.ehu.es/handle/10810/15578
http://addi.ehu.es/handle/10810/15580
http://addi.ehu.es/handle/10810/15581
http://addi.ehu.es/handle/10810/15582
http://addi.ehu.es/handle/10810/15585
http://addi.ehu.es/handle/10810/15586
http://addi.ehu.es/handle/10810/15587
http://addi.ehu.es/handle/10810/15602
http://addi.ehu.es/handle/10810/15688
http://addi.ehu.es/handle/10810/15689
http://addi.ehu.es/handle/10810/15705
http://addi.ehu.es/handle/10810/15709
http://addi.ehu.es/handle/10810/15737
http://addi.ehu.es/handle/10810/15739
http://addi.ehu.es/handle/10810/15719
http://addi.ehu.es/handle/10810/15784
http://addi.ehu.es/handle/10810/15845
http://addi.ehu.es/handle/10810/15842
http://addi.ehu.es/handle/10810/15844
http://addi.ehu.es/handle/10810/15865
http://addi.ehu.es/handle/10810/15862
http://addi.ehu.es/handle/10810/15857
http://addi.ehu.es/handle/10810/15870
http://addi.ehu.es/handle/10810/15871
http://addi.ehu.es/handle/10810/15921
http://addi.ehu.es/handle/10810/15872
http://addi.ehu.es/handle/10810/15873
http://addi.ehu.es/handle/10810/15874
http://addi.ehu.es/handle/10810/15879
http://addi.ehu.es/handle/10810/15882
http://addi.ehu.es/handle/10810/15883
http://addi.ehu.es/handle/10810/15886
http://addi.ehu.es/handle/10810/15888
http://addi.ehu.es/handle/10810/15890
http://addi.ehu.es/handle/10810/15891
http://addi.ehu.es/handle/10810/15892
http://addi.ehu.es/handle/10810/15894
http://addi.ehu.es/handle/10810/15898
http://addi.ehu.es/handle/10810/15899
http://addi.ehu.es/handle/10810/15900
http://addi.ehu.es/handle/10810/15901
http://addi.ehu.es/handle/10810/15904
http://addi.ehu.es/handle/10810/15907
http://addi.ehu.es/handle/10810/15913
http://addi.ehu.es/handle/10810/15914
http://addi.ehu.es/handle/10810/15946
http://addi.ehu.es/handle/10810/15968
http://addi.ehu.es/handle/10810/15961
http://addi.ehu.es/handle/10810/15966
http://addi.ehu.es/handle/10810/15964
http://addi.ehu.es/handle/10810/15974
http://addi.ehu.es/handle/10810/15997
http://addi.ehu.es/handle/10810/15982
http://addi.ehu.es/handle/10810/15983
http://addi.ehu.es/handle/10810/15986
http://addi.ehu.es/handle/10810/15991
http://addi.ehu.es/handle/10810/15992
http://addi.ehu.es/handle/10810/16108
http://addi.ehu.es/handle/10810/15993
http://addi.ehu.es/handle/10810/19040
http://addi.ehu.es/handle/10810/16000
http://addi.ehu.es/handle/10810/16091
http://addi.ehu.es/handle/10810/16074
http://addi.ehu.es/handle/10810/16032
http://addi.ehu.es/handle/10810/16005
http://addi.ehu.es/handle/10810/16007
http://addi.ehu.es/handle/10810/16008
http://addi.ehu.es/handle/10810/16009
http://addi.ehu.es/handle/10810/16105
http://addi.ehu.es/handle/10810/16026
http://addi.ehu.es/handle/10810/16542
http://addi.ehu.es/handle/10810/16028
http://addi.ehu.es/handle/10810/16064
http://addi.ehu.es/handle/10810/16076
http://addi.ehu.es/handle/10810/16072
http://addi.ehu.es/handle/10810/16062
http://addi.ehu.es/handle/10810/16079
http://addi.ehu.es/handle/10810/16081
http://addi.ehu.es/handle/10810/16085
http://addi.ehu.es/handle/10810/16087
http://addi.ehu.es/handle/10810/16258
http://addi.ehu.es/handle/10810/16092
http://addi.ehu.es/handle/10810/16116
http://addi.ehu.es/handle/10810/16118
http://addi.ehu.es/handle/10810/16162
http://addi.ehu.es/handle/10810/16109
http://addi.ehu.es/handle/10810/16111
http://addi.ehu.es/handle/10810/16249
http://addi.ehu.es/handle/10810/16170
http://addi.ehu.es/handle/10810/16115
http://addi.ehu.es/handle/10810/16184
http://addi.ehu.es/handle/10810/16124
http://addi.ehu.es/handle/10810/16122
http://addi.ehu.es/handle/10810/16123
http://addi.ehu.es/handle/10810/16250
http://addi.ehu.es/handle/10810/16311
http://addi.ehu.es/handle/10810/16242
http://addi.ehu.es/handle/10810/16246
http://addi.ehu.es/handle/10810/18922
http://addi.ehu.es/handle/10810/16127
http://addi.ehu.es/handle/10810/16130
http://addi.ehu.es/handle/10810/16132
http://addi.ehu.es/handle/10810/16136
http://addi.ehu.es/handle/10810/16137
http://addi.ehu.es/handle/10810/16138
http://addi.ehu.es/handle/10810/16139
http://addi.ehu.es/handle/10810/16141
http://addi.ehu.es/handle/10810/16176
http://addi.ehu.es/handle/10810/16168
http://addi.ehu.es/handle/10810/16178
http://addi.ehu.es/handle/10810/16179
http://addi.ehu.es/handle/10810/16185
http://addi.ehu.es/handle/10810/16187
http://addi.ehu.es/handle/10810/16190
http://addi.ehu.es/handle/10810/16192
http://addi.ehu.es/handle/10810/16193
http://addi.ehu.es/handle/10810/16194
http://addi.ehu.es/handle/10810/16195
http://addi.ehu.es/handle/10810/16239
http://addi.ehu.es/handle/10810/16269
http://addi.ehu.es/handle/10810/16252
http://addi.ehu.es/handle/10810/16256
http://addi.ehu.es/handle/10810/14632
http://addi.ehu.es/handle/10810/14633
http://addi.ehu.es/handle/10810/14634
http://addi.ehu.es/handle/10810/14635
http://addi.ehu.es/handle/10810/14636
http://addi.ehu.es/handle/10810/14637
http://addi.ehu.es/handle/10810/14640
http://addi.ehu.es/handle/10810/14642
http://addi.ehu.es/handle/10810/14665
http://addi.ehu.es/handle/10810/14663
http://addi.ehu.es/handle/10810/14664
http://addi.ehu.es/handle/10810/14666
http://addi.ehu.es/handle/10810/14670
http://addi.ehu.es/handle/10810/14672
http://addi.ehu.es/handle/10810/14673
http://addi.ehu.es/handle/10810/14674
http://addi.ehu.es/handle/10810/14676
http://addi.ehu.es/handle/10810/14679
http://addi.ehu.es/handle/10810/14684
http://addi.ehu.es/handle/10810/14682
http://addi.ehu.es/handle/10810/14714
http://addi.ehu.es/handle/10810/14762
http://addi.ehu.es/handle/10810/14731
http://addi.ehu.es/handle/10810/14732
http://addi.ehu.es/handle/10810/14735
http://addi.ehu.es/handle/10810/14736
http://addi.ehu.es/handle/10810/14804
http://addi.ehu.es/handle/10810/14737
http://addi.ehu.es/handle/10810/14743
http://addi.ehu.es/handle/10810/14744
http://addi.ehu.es/handle/10810/14815
http://addi.ehu.es/handle/10810/14817
http://addi.ehu.es/handle/10810/14819
http://addi.ehu.es/handle/10810/14820
http://addi.ehu.es/handle/10810/14821
http://addi.ehu.es/handle/10810/14822
http://addi.ehu.es/handle/10810/14823
http://addi.ehu.es/handle/10810/14828
http://addi.ehu.es/handle/10810/14830
http://addi.ehu.es/handle/10810/14832
http://addi.ehu.es/handle/10810/14833
http://addi.ehu.es/handle/10810/14834
http://addi.ehu.es/handle/10810/14838
http://addi.ehu.es/handle/10810/14944
http://addi.ehu.es/handle/10810/14945
http://addi.ehu.es/handle/10810/14946
http://addi.ehu.es/handle/10810/14947
http://addi.ehu.es/handle/10810/14948
http://addi.ehu.es/handle/10810/14950
http://addi.ehu.es/handle/10810/15042
http://addi.ehu.es/handle/10810/15046
http://addi.ehu.es/handle/10810/15045
http://addi.ehu.es/handle/10810/15049
http://addi.ehu.es/handle/10810/15188
http://addi.ehu.es/handle/10810/15187
http://addi.ehu.es/handle/10810/15094
http://addi.ehu.es/handle/10810/15096
http://addi.ehu.es/handle/10810/15097
http://addi.ehu.es/handle/10810/15102
http://addi.ehu.es/handle/10810/15103
http://addi.ehu.es/handle/10810/15647
http://addi.ehu.es/handle/10810/15113
http://addi.ehu.es/handle/10810/15248
http://addi.ehu.es/handle/10810/17243
http://addi.ehu.es/handle/10810/15256
http://addi.ehu.es/handle/10810/15298
http://addi.ehu.es/handle/10810/15258
http://addi.ehu.es/handle/10810/15303
http://addi.ehu.es/handle/10810/15304
http://addi.ehu.es/handle/10810/15306
http://addi.ehu.es/handle/10810/15308
http://addi.ehu.es/handle/10810/15311
http://addi.ehu.es/handle/10810/15316
http://addi.ehu.es/handle/10810/15318
http://addi.ehu.es/handle/10810/15370
http://addi.ehu.es/handle/10810/19629
http://addi.ehu.es/handle/10810/15382
http://addi.ehu.es/handle/10810/15411
http://addi.ehu.es/handle/10810/15414
http://addi.ehu.es/handle/10810/15433
http://addi.ehu.es/handle/10810/15553
http://addi.ehu.es/handle/10810/15538
http://addi.ehu.es/handle/10810/15560
http://addi.ehu.es/handle/10810/15579
http://addi.ehu.es/handle/10810/15609
http://addi.ehu.es/handle/10810/15625
http://addi.ehu.es/handle/10810/15644
http://addi.ehu.es/handle/10810/19644
http://addi.ehu.es/handle/10810/15662
http://addi.ehu.es/handle/10810/15642
http://addi.ehu.es/handle/10810/15643
http://addi.ehu.es/handle/10810/15800
http://addi.ehu.es/handle/10810/15773
http://addi.ehu.es/handle/10810/15820
http://addi.ehu.es/handle/10810/15802
http://addi.ehu.es/handle/10810/15803
http://addi.ehu.es/handle/10810/15808
http://addi.ehu.es/handle/10810/15809
http://addi.ehu.es/handle/10810/15810
http://addi.ehu.es/handle/10810/15811
http://addi.ehu.es/handle/10810/15812
http://addi.ehu.es/handle/10810/15813
http://addi.ehu.es/handle/10810/15823
http://addi.ehu.es/handle/10810/15864
http://addi.ehu.es/handle/10810/15856
http://addi.ehu.es/handle/10810/15944
http://addi.ehu.es/handle/10810/15947
http://addi.ehu.es/handle/10810/15963
http://addi.ehu.es/handle/10810/15969
http://addi.ehu.es/handle/10810/15948
http://addi.ehu.es/handle/10810/15965
http://addi.ehu.es/handle/10810/16267
http://addi.ehu.es/handle/10810/15970
http://addi.ehu.es/handle/10810/15971
http://addi.ehu.es/handle/10810/20737
http://addi.ehu.es/handle/10810/15984
http://addi.ehu.es/handle/10810/16024
http://addi.ehu.es/handle/10810/15988
http://addi.ehu.es/handle/10810/15995
http://addi.ehu.es/handle/10810/15989
http://addi.ehu.es/handle/10810/15998
http://addi.ehu.es/handle/10810/15994
http://addi.ehu.es/handle/10810/16002
http://addi.ehu.es/handle/10810/16003
http://addi.ehu.es/handle/10810/16075
http://addi.ehu.es/handle/10810/16025
http://addi.ehu.es/handle/10810/16030
http://addi.ehu.es/handle/10810/16031
http://addi.ehu.es/handle/10810/16268
http://addi.ehu.es/handle/10810/16034
http://addi.ehu.es/handle/10810/16036
http://addi.ehu.es/handle/10810/16045
http://addi.ehu.es/handle/10810/16048
http://addi.ehu.es/handle/10810/16051
http://addi.ehu.es/handle/10810/16054
http://addi.ehu.es/handle/10810/16056
http://addi.ehu.es/handle/10810/16077
http://addi.ehu.es/handle/10810/16071
http://addi.ehu.es/handle/10810/16065
http://addi.ehu.es/handle/10810/16068
http://addi.ehu.es/handle/10810/16078
http://addi.ehu.es/handle/10810/16080
http://addi.ehu.es/handle/10810/16090
http://addi.ehu.es/handle/10810/16117
http://addi.ehu.es/handle/10810/16110
http://addi.ehu.es/handle/10810/16106
http://addi.ehu.es/handle/10810/16248
http://addi.ehu.es/handle/10810/16234
http://addi.ehu.es/handle/10810/16235
http://addi.ehu.es/handle/10810/16238
http://addi.ehu.es/handle/10810/16261
http://addi.ehu.es/handle/10810/16272
http://addi.ehu.es/handle/10810/16442
http://addi.ehu.es/handle/10810/16273
http://addi.ehu.es/handle/10810/16279
http://addi.ehu.es/handle/10810/16284
http://addi.ehu.es/handle/10810/16288
http://addi.ehu.es/handle/10810/16292
http://addi.ehu.es/handle/10810/16303
http://addi.ehu.es/handle/10810/16296
http://addi.ehu.es/handle/10810/16298
http://addi.ehu.es/handle/10810/16304
http://addi.ehu.es/handle/10810/16309
http://addi.ehu.es/handle/10810/16316
http://addi.ehu.es/handle/10810/16317
http://addi.ehu.es/handle/10810/16318
http://addi.ehu.es/handle/10810/16319
http://addi.ehu.es/handle/10810/16320
http://addi.ehu.es/handle/10810/16322
http://addi.ehu.es/handle/10810/16321
http://addi.ehu.es/handle/10810/16325
http://addi.ehu.es/handle/10810/16326
http://addi.ehu.es/handle/10810/16328
http://addi.ehu.es/handle/10810/16327
http://addi.ehu.es/handle/10810/16331
http://addi.ehu.es/handle/10810/16329
http://addi.ehu.es/handle/10810/16330
http://addi.ehu.es/handle/10810/16332
http://addi.ehu.es/handle/10810/16333
http://addi.ehu.es/handle/10810/16334
http://addi.ehu.es/handle/10810/16336
http://addi.ehu.es/handle/10810/16337
http://addi.ehu.es/handle/10810/16338
http://addi.ehu.es/handle/10810/16340
http://addi.ehu.es/handle/10810/16771
http://addi.ehu.es/handle/10810/16341
http://addi.ehu.es/handle/10810/16342
http://addi.ehu.es/handle/10810/16343
http://addi.ehu.es/handle/10810/16344
http://addi.ehu.es/handle/10810/16348
http://addi.ehu.es/handle/10810/16349
http://addi.ehu.es/handle/10810/14629
http://addi.ehu.es/handle/10810/14689
http://addi.ehu.es/handle/10810/14690
http://addi.ehu.es/handle/10810/14691
http://addi.ehu.es/handle/10810/14700
http://addi.ehu.es/handle/10810/14701
http://addi.ehu.es/handle/10810/14702
http://addi.ehu.es/handle/10810/14703
http://addi.ehu.es/handle/10810/14704
http://addi.ehu.es/handle/10810/14709
http://addi.ehu.es/handle/10810/14723
http://addi.ehu.es/handle/10810/14724
http://addi.ehu.es/handle/10810/14725
http://addi.ehu.es/handle/10810/14726
http://addi.ehu.es/handle/10810/14766
http://addi.ehu.es/handle/10810/14727
http://addi.ehu.es/handle/10810/14728
http://addi.ehu.es/handle/10810/14729
http://addi.ehu.es/handle/10810/14730