%0 Journal Article %A J. K. Baksalary %A R. Kala %T On the distribution of a nonnegative difference between two $χ^2$-distributed second degree polynomial statistics %J Applicationes Mathematicae %D 1983 %P 55-59 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-18-1-55-59/ %R 10.4064/am-18-1-55-59 %G en %F 10_4064_am_18_1_55_59