@article{DAN_1981_260_2_a7,
     author = {A. V. Pogorelov},
     title = {On the stability of minimal surfaces},
     journal = {Doklady Akademii Nauk},
     pages = {293--295},
     publisher = {mathdoc},
     volume = {260},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_2_a7/}
}