@article{DAN_1974_219_2_a8,
     author = {V. A. Smirnov},
     title = {Twisted tensor products and {Hirsch's} theory},
     journal = {Doklady Akademii Nauk},
     pages = {294--296},
     publisher = {mathdoc},
     volume = {219},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_219_2_a8/}
}