@article{DAN_1988_299_2_a0,
     author = {A. Azamov},
     title = {Semistability and duality in the theory of the {Pontryagin}},
     journal = {Doklady Akademii Nauk},
     pages = {265--268},
     publisher = {mathdoc},
     volume = {299},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_299_2_a0/}
}