@article{DAN_1991_317_6_a6,
     author = {N. V. Shcherbina},
     title = {On the polynomial hull of a two-dimensional sphere in $\mathbf{C}^2$},
     journal = {Doklady Akademii Nauk},
     pages = {1315--1319},
     year = {1991},
     volume = {317},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_317_6_a6/}
}