@article{TRSPY_1973_133_a8,
     author = {V. K. Bulitko},
     title = {Graphs with prescribed environments of the vertices},
     journal = {Informatics and Automation},
     pages = {78--94},
     publisher = {mathdoc},
     volume = {133},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1973_133_a8/}
}