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1Argitaratua 1975Gaiak “...Aquatic ecology Congresses....”
Liburua -
2
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3Argitaratua 1976Gaiak “...Aquatic ecology Technique Congresses....”
Conference Proceeding Liburua -
4
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5Argitaratua 1988Gaiak “...Aquatic ecology Congresses....”
Liburua -
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7
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8
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