@article{SEMR_2020_17_a61, author = {V. I. Rodionov}, title = {On recursion relations in the problem of enumeration of posets}, journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a}, pages = {190--207}, publisher = {mathdoc}, volume = {17}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/SEMR_2020_17_a61/} }