@article{10_14708_ma_v5i10_1257,
     author = {Czes{\l}aw St\k{e}pniak},
     title = {Approximate sums of squares in analysis of variance},
     journal = {Mathematica Applicanda},
     pages = { 71--78},
     publisher = {mathdoc},
     volume = {5},
     number = {10},
     year = {1977},
     doi = {10.14708/ma.v5i10.1257},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v5i10.1257/}
}