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@article{MO_2000_15_4_a3, author = {A. V. Gladkii}, title = {On {Definitions} of a {Length} of a {Circumference} and an {Area} of a {Circle}}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {41--50}, publisher = {mathdoc}, volume = {15}, number = {4}, year = {2000}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2000_15_4_a3/} }
A. V. Gladkii. On Definitions of a Length of a Circumference and an Area of a Circle. Matematičeskoe obrazovanie, Tome 15 (2000) no. 4, pp. 41-50. http://geodesic.mathdoc.fr/item/MO_2000_15_4_a3/