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@article{MASLO_1988__38_3_a6, author = {Chajda, Ivan}, title = {The egg-box property of congruences}, journal = {Mathematica slovaca}, pages = {243--247}, publisher = {mathdoc}, volume = {38}, number = {3}, year = {1988}, mrnumber = {977902}, zbl = {0649.08002}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1988__38_3_a6/} }
Chajda, Ivan. The egg-box property of congruences. Mathematica slovaca, Tome 38 (1988) no. 3, pp. 243-247. http://geodesic.mathdoc.fr/item/MASLO_1988__38_3_a6/