@article{DAN_1989_304_5_a6,
     author = {A. V. Pogorelov},
     title = {Loss of stability of developable shells},
     journal = {Doklady Akademii Nauk},
     pages = {1056--1059},
     publisher = {mathdoc},
     volume = {304},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_304_5_a6/}
}