00260nam a2200097Ia 4500008004100000082003800041100001400079245003000093260003100123300000800154140113s9999    xx            000 0 und d  a"581.48:581.5""1972""(082.2)  L3"  aHeydecker  aSeed ecology :Proceedings  a1973bButterworthscLondon  a578