@article{DAN_1980_253_2_a6,
     author = {V. K. Zakharov and A. V. Koldunov},
     title = {The sequential absolute and its characterizations},
     journal = {Doklady Akademii Nauk},
     pages = {280--284},
     publisher = {mathdoc},
     volume = {253},
     number = {2},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_253_2_a6/}
}