@article{DA_2019_26_1_a1,
     author = {V. A. Voblyi},
     title = {The second {Riddel} relation and its consequences},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {20--32},
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2019_26_1_a1/}
}