@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/}
}