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1Argitaratua 1980“...North-Holland,...”
Conference Proceeding Liburua -
2Argitaratua 1989“...North-Holland ; Elsevier Science [US & Canadian distributor],...”
Conference Proceeding Liburua -
3Argitaratua 1989“...North-Holland ; Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. ...”
Conference Proceeding Liburua