@article{DAN_1987_292_4_a4,
     author = {S. K. Vodopyanov},
     title = {Geometric properties of domains and estimates for the norm of an},
     journal = {Doklady Akademii Nauk},
     pages = {791--795},
     publisher = {mathdoc},
     volume = {292},
     number = {4},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_292_4_a4/}
}