@article{DAN_1975_222_6_a8,
     author = {V. V. Pashenkov},
     title = {On dualities},
     journal = {Doklady Akademii Nauk},
     pages = {1295--1298},
     publisher = {mathdoc},
     volume = {222},
     number = {6},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_222_6_a8/}
}