@article{MAIS_2019_26_3_a5,
     author = {N. S. Medvedeva and A. V. Smirnov},
     title = {NP-completeness and one polynomial subclass of the two-step graph colouring problem},
     journal = {Modelirovanie i analiz informacionnyh sistem},
     pages = {405--419},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAIS_2019_26_3_a5/}
}