@article{DAN_1981_256_5_a8,
     author = {E. P. Lipatov},
     title = {Homogeneity classes of binary combinations},
     journal = {Doklady Akademii Nauk},
     pages = {1065--1068},
     year = {1981},
     volume = {256},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_256_5_a8/}
}