@article{ZNSL_2019_488_a7,
     author = {D. D. Cherkashin},
     title = {On the {Erd{\H} {o}s--Hajnal} problem in the case of $3$-graphs},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {168--176},
     publisher = {mathdoc},
     volume = {488},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2019_488_a7/}
}