@article{SEMR_2017_14_a2,
     author = {V. I. Rodionov},
     title = {On recurrence relation in the problem of enumeration of finite posets},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {98--111},
     publisher = {mathdoc},
     volume = {14},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2017_14_a2/}
}