@article{DAN_1979_245_6_a6,
     author = {G. M. Nepomnyashchii},
     title = {On multiplicative extension operators},
     journal = {Doklady Akademii Nauk},
     pages = {1311--1314},
     year = {1979},
     volume = {245},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_6_a6/}
}