%0 Journal Article %A A. Pultr %A Z. HedrlĂ­n %T On the representation of small categories %J Doklady Akademii Nauk %D 1965 %P 284-286 %V 160 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_160_2_a8/ %G ru %F DAN_1965_160_2_a8