%0 Journal Article %A Henryk Mikos %T Hypothesis testing a nonorthogonal three-way cross classification using projection operators %J Mathematica Applicanda %D 1977 %P 59-67 %V 5 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v5i11.1264/ %R 10.14708/ma.v5i11.1264 %G pl %F 10_14708_ma_v5i11_1264