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@article{KUKZ_1992_27_27_a3, author = {A. V. Kazantsev}, title = {On a problem related to the extremum of the inner radius}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {47--62}, publisher = {mathdoc}, volume = {27}, number = {27}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1992_27_27_a3/} }
A. V. Kazantsev. On a problem related to the extremum of the inner radius. Trudy seminara po kraevym zadačam, Геометрическая теория функций и краевые задачи, Tome 27 (1992) no. 27, pp. 47-62. http://geodesic.mathdoc.fr/item/KUKZ_1992_27_27_a3/