00380nam a2200145Ia 4500008004100000020001500041082001900056100001900075245003800094260003600132300000800168650001800176650001800194653002200212170901s1979    xx            000 0 und d  a0387903844  a574.5264bF90P  aFrench, Norman 0aPerspectives in Grassland Ecology  aNew YorkbSpringer Verlagc1979  a204  aLife sciences  aPure Sciences  aGrassland ecology