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@article{MZM_1967_1_6_a4, author = {N. V. Rao}, title = {A relation between the area of a set and the length of its boundary}, journal = {Matemati\v{c}eskie zametki}, pages = {657--658}, publisher = {mathdoc}, volume = {1}, number = {6}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1967_1_6_a4/} }
N. V. Rao. A relation between the area of a set and the length of its boundary. Matematičeskie zametki, Tome 1 (1967) no. 6, pp. 657-658. http://geodesic.mathdoc.fr/item/MZM_1967_1_6_a4/