00363nam a2200133Ia 4500008004100000082001700041100001800058245003900076260004000115300000800155650001600163650001800179653003200197170901s1971    xx            000 0 und d  a519.54bC54P  aConover, W.J. 0aPractical Nonparametric Statistics  aNew YorkbJohn Wiley and Sonsc1971  a462  aMathematics  aPure Sciences  aNon-parametrical statistics