@article{10_14708_ma_v5i11_1264, author = {Henryk Mikos}, title = {Hypothesis testing a nonorthogonal three-way cross classification using projection operators}, journal = {Mathematica Applicanda}, pages = { 59--67}, publisher = {mathdoc}, volume = {5}, number = {11}, year = {1977}, doi = {10.14708/ma.v5i11.1264}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v5i11.1264/} }