00274nam a2200097Ia 4500008004100000082002300041100002600064245005200090260002600142300000800168140113s9999    xx            000 0 und d  a595.2:591.557   L8  a"Hassel, Michael. P."  aThe Dynamics of arthropod predator-prey systems  a1978bPUPcNew Jersey  a237