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@article{MZM_1974_16_1_a3, author = {L. D. Kudryavtsev}, title = {Some properties of the squares of positive integers}, journal = {Matemati\v{c}eskie zametki}, pages = {33--39}, publisher = {mathdoc}, volume = {16}, number = {1}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1974_16_1_a3/} }
L. D. Kudryavtsev. Some properties of the squares of positive integers. Matematičeskie zametki, Tome 16 (1974) no. 1, pp. 33-39. http://geodesic.mathdoc.fr/item/MZM_1974_16_1_a3/