@article{DM_1990_2_3_a9,
     author = {D. V. Korobitsyn},
     title = {Complexity of some problems on hereditary classes of graphs},
     journal = {Diskretnaya Matematika},
     pages = {90--96},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1990_2_3_a9/}
}