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Humic substances, their structure and function in the biosphere proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972
Publicado 1975Número de Clasificación: loading...
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Primary productivity in aquatic environments proceedings of an I.B.P. PF symposium, Pallanza, Italy, April 26-May 1, 1965
Publicado 1966Número de Clasificación: loading...
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