%0 Journal Article %A D. D. Cherkashin %T On the Erdős–Hajnal problem in the case of $3$-graphs %J Zapiski Nauchnykh Seminarov POMI %D 2019 %P 168-176 %V 488 %U http://geodesic.mathdoc.fr/item/ZNSL_2019_488_a7/ %G en %F ZNSL_2019_488_a7