00281nam a2200097Ia 4500008004100000082002000041100002100061245005700082260003600139300000800175140113s9999    xx            000 0 und d  a581.46/.48   L2  aVan Der Piji. L.  aPrinciples of dispersal in Higher plants 2nd edition  a1972bSpringer-VerlagcNew York  a161