@article{SEMR_2023_20_2_a27,
     author = {M. G. Chebunin and A. P. Kovalevskii},
     title = {Limit theorems for forward and backward processes of numbers of non-empty urns in infinite urn schemes},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {913--922},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2023_20_2_a27/}
}