00427nam a2200181Ia 4500008004100000041001200041082001000053082001100063100001600074100001100090245003300101260001300134260002000147260000900167650002600176650001200202650003100214150909s9999 xx 000 0 und d aEnglish a574.5 bINN/GR aInnis G S  eEditor aGrass land stimulaiton model aNew York bSpringer Verlag c1978 aBiological components aEcology aGrassland simulation model