00276nam a2200097Ia 4500008004100000082001400041100004000055245003000095260004500125300000800170140113s9999    xx            000 0 und d  a581.5.143  a" Krupa, S.V.  & Dommergues, Y.R. "  aEcology of root pathogens  a1979bElsevier Publishing Co.cAmsterdam  a281