http://addi.ehu.es/handle/10810/13657
http://addi.ehu.es/handle/10810/13497
http://addi.ehu.es/handle/10810/13498
http://addi.ehu.es/handle/10810/13518
http://addi.ehu.es/handle/10810/13404
http://addi.ehu.es/handle/10810/13172
http://addi.ehu.es/handle/10810/13179
http://addi.ehu.es/handle/10810/13577
http://addi.ehu.es/handle/10810/13717
http://addi.ehu.es/handle/10810/13718
http://addi.ehu.es/handle/10810/18537
http://addi.ehu.es/handle/10810/13697
http://addi.ehu.es/handle/10810/13506
http://addi.ehu.es/handle/10810/13314
http://addi.ehu.es/handle/10810/13424
http://addi.ehu.es/handle/10810/13325
http://addi.ehu.es/handle/10810/13327
http://addi.ehu.es/handle/10810/13331
http://addi.ehu.es/handle/10810/13332
http://addi.ehu.es/handle/10810/13333
http://addi.ehu.es/handle/10810/13338
http://addi.ehu.es/handle/10810/13345
http://addi.ehu.es/handle/10810/13346
http://addi.ehu.es/handle/10810/13347
http://addi.ehu.es/handle/10810/13348
http://addi.ehu.es/handle/10810/13349
http://addi.ehu.es/handle/10810/13350
http://addi.ehu.es/handle/10810/13354
http://addi.ehu.es/handle/10810/13355
http://addi.ehu.es/handle/10810/13356
http://addi.ehu.es/handle/10810/13358
http://addi.ehu.es/handle/10810/13465
http://addi.ehu.es/handle/10810/13363
http://addi.ehu.es/handle/10810/13369
http://addi.ehu.es/handle/10810/13372
http://addi.ehu.es/handle/10810/13373
http://addi.ehu.es/handle/10810/13376
http://addi.ehu.es/handle/10810/13382
http://addi.ehu.es/handle/10810/13383
http://addi.ehu.es/handle/10810/13385
http://addi.ehu.es/handle/10810/20832
http://addi.ehu.es/handle/10810/13390
http://addi.ehu.es/handle/10810/13407
http://addi.ehu.es/handle/10810/20762
http://addi.ehu.es/handle/10810/18534
http://addi.ehu.es/handle/10810/20761
http://addi.ehu.es/handle/10810/13468
http://addi.ehu.es/handle/10810/13447
http://addi.ehu.es/handle/10810/13466
http://addi.ehu.es/handle/10810/13469
http://addi.ehu.es/handle/10810/13470
http://addi.ehu.es/handle/10810/13471
http://addi.ehu.es/handle/10810/13472
http://addi.ehu.es/handle/10810/13473
http://addi.ehu.es/handle/10810/13474
http://addi.ehu.es/handle/10810/13475
http://addi.ehu.es/handle/10810/13476
http://addi.ehu.es/handle/10810/13477
http://addi.ehu.es/handle/10810/13478
http://addi.ehu.es/handle/10810/13479
http://addi.ehu.es/handle/10810/13480
http://addi.ehu.es/handle/10810/13481
http://addi.ehu.es/handle/10810/13482
http://addi.ehu.es/handle/10810/13483
http://addi.ehu.es/handle/10810/13484
http://addi.ehu.es/handle/10810/13485
http://addi.ehu.es/handle/10810/13486
http://addi.ehu.es/handle/10810/13487
http://addi.ehu.es/handle/10810/13488
http://addi.ehu.es/handle/10810/13489
http://addi.ehu.es/handle/10810/13490
http://addi.ehu.es/handle/10810/13491
http://addi.ehu.es/handle/10810/13492
http://addi.ehu.es/handle/10810/13493
http://addi.ehu.es/handle/10810/13494
http://addi.ehu.es/handle/10810/13495
http://addi.ehu.es/handle/10810/13496
http://addi.ehu.es/handle/10810/13499
http://addi.ehu.es/handle/10810/13500
http://addi.ehu.es/handle/10810/13501
http://addi.ehu.es/handle/10810/13502
http://addi.ehu.es/handle/10810/13503
http://addi.ehu.es/handle/10810/13504
http://addi.ehu.es/handle/10810/13505
http://addi.ehu.es/handle/10810/13525
http://addi.ehu.es/handle/10810/20825
http://addi.ehu.es/handle/10810/13531
http://addi.ehu.es/handle/10810/14314
http://addi.ehu.es/handle/10810/13983
http://addi.ehu.es/handle/10810/13746
http://addi.ehu.es/handle/10810/13747
http://addi.ehu.es/handle/10810/13748
http://addi.ehu.es/handle/10810/13749
http://addi.ehu.es/handle/10810/13751
http://addi.ehu.es/handle/10810/13979
http://addi.ehu.es/handle/10810/13663
http://addi.ehu.es/handle/10810/17242
http://addi.ehu.es/handle/10810/13586
http://addi.ehu.es/handle/10810/13589
http://addi.ehu.es/handle/10810/13604
http://addi.ehu.es/handle/10810/13624
http://addi.ehu.es/handle/10810/13664
http://addi.ehu.es/handle/10810/13665
http://addi.ehu.es/handle/10810/13666
http://addi.ehu.es/handle/10810/13636
http://addi.ehu.es/handle/10810/13667
http://addi.ehu.es/handle/10810/13639
http://addi.ehu.es/handle/10810/13668
http://addi.ehu.es/handle/10810/13643
http://addi.ehu.es/handle/10810/13644
http://addi.ehu.es/handle/10810/13645
http://addi.ehu.es/handle/10810/13646
http://addi.ehu.es/handle/10810/13647
http://addi.ehu.es/handle/10810/13648
http://addi.ehu.es/handle/10810/13669
http://addi.ehu.es/handle/10810/13650
http://addi.ehu.es/handle/10810/13651
http://addi.ehu.es/handle/10810/13652
http://addi.ehu.es/handle/10810/13653
http://addi.ehu.es/handle/10810/13654
http://addi.ehu.es/handle/10810/13882
http://addi.ehu.es/handle/10810/13883
http://addi.ehu.es/handle/10810/14104
http://addi.ehu.es/handle/10810/14381
http://addi.ehu.es/handle/10810/13903
http://addi.ehu.es/handle/10810/13904
http://addi.ehu.es/handle/10810/13905
http://addi.ehu.es/handle/10810/14810
http://addi.ehu.es/handle/10810/14811
http://addi.ehu.es/handle/10810/14813
http://addi.ehu.es/handle/10810/15123
http://addi.ehu.es/handle/10810/15127
http://addi.ehu.es/handle/10810/18146
http://addi.ehu.es/handle/10810/15328
http://addi.ehu.es/handle/10810/15244
http://addi.ehu.es/handle/10810/15329
http://addi.ehu.es/handle/10810/15185
http://addi.ehu.es/handle/10810/15204
http://addi.ehu.es/handle/10810/15206
http://addi.ehu.es/handle/10810/15208
http://addi.ehu.es/handle/10810/15209
http://addi.ehu.es/handle/10810/15211
http://addi.ehu.es/handle/10810/15212
http://addi.ehu.es/handle/10810/15213
http://addi.ehu.es/handle/10810/15214
http://addi.ehu.es/handle/10810/15215
http://addi.ehu.es/handle/10810/10745
http://addi.ehu.es/handle/10810/15218
http://addi.ehu.es/handle/10810/15219
http://addi.ehu.es/handle/10810/15221
http://addi.ehu.es/handle/10810/15223
http://addi.ehu.es/handle/10810/15228
http://addi.ehu.es/handle/10810/15229
http://addi.ehu.es/handle/10810/15230
http://addi.ehu.es/handle/10810/15233
http://addi.ehu.es/handle/10810/15249
http://addi.ehu.es/handle/10810/15250
http://addi.ehu.es/handle/10810/15254
http://addi.ehu.es/handle/10810/15262
http://addi.ehu.es/handle/10810/15265
http://addi.ehu.es/handle/10810/15267
http://addi.ehu.es/handle/10810/15269
http://addi.ehu.es/handle/10810/15271
http://addi.ehu.es/handle/10810/15322
http://addi.ehu.es/handle/10810/15384
http://addi.ehu.es/handle/10810/15428
http://addi.ehu.es/handle/10810/15442
http://addi.ehu.es/handle/10810/15357
http://addi.ehu.es/handle/10810/15345
http://addi.ehu.es/handle/10810/15358
http://addi.ehu.es/handle/10810/15360
http://addi.ehu.es/handle/10810/15362
http://addi.ehu.es/handle/10810/15449
http://addi.ehu.es/handle/10810/15467
http://addi.ehu.es/handle/10810/15522
http://addi.ehu.es/handle/10810/15524
http://addi.ehu.es/handle/10810/15526
http://addi.ehu.es/handle/10810/15531
http://addi.ehu.es/handle/10810/15385
http://addi.ehu.es/handle/10810/10746
http://addi.ehu.es/handle/10810/10747
http://addi.ehu.es/handle/10810/10748
http://addi.ehu.es/handle/10810/10749
http://addi.ehu.es/handle/10810/10750
http://addi.ehu.es/handle/10810/10751
http://addi.ehu.es/handle/10810/15415
http://addi.ehu.es/handle/10810/15418
http://addi.ehu.es/handle/10810/15530
http://addi.ehu.es/handle/10810/15525
http://addi.ehu.es/handle/10810/15523
http://addi.ehu.es/handle/10810/15527
http://addi.ehu.es/handle/10810/15546
http://addi.ehu.es/handle/10810/15548
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