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1by Veldeman, R. (Rijksstation vor Platenziekten, Merelbeke (Belgium)), FAO, Rome (Italy). International Poplar Commission. Working Party on Poplar Diseases eng, Joint Symposium on Resistance Mechanisms in Poplar Diseases eng 1-5 Sep 1980 Kornik (Poland), International Union of Forestry Research Organizations, Vienna (Austria). Working Party S2.05.03 eng
Published ndTexto bibliotecaFAO IT