%0 Journal Article %A F. Haghighi %A M. Nikulin %T A chi-squared test for power generalized weibull family for the head-and-neck cancer censored data %J Zapiski Nauchnykh Seminarov POMI %D 2004 %P 222-236 %V 311 %U http://geodesic.mathdoc.fr/item/ZNSL_2004_311_a12/ %G en %F ZNSL_2004_311_a12