00268nam a2200097Ia 4500008004100000082001800041100001900059245005200078260003200130300000800162140113s9999    xx            000 0 und d  a66.067.5   M4  a"Rickwood, D."  aCentrifugation 2nd edition:A Practical Approach  a1984bIRL PresscWashington  a352