00334nam a2200121Ia 4500008004100000082001400041100002000055245003900075250001000114260004100124300001700165650003000182140113s9999    xx            000 0 und d  a519.28 M0  a"Conover, W. J"  aPractical nonparametric statistics  a2 Ed.  b"New York : John Wiley & sons, 1980"  a"xiv, 491p."  aNon parametric statistics