@article{UZERU_2007_2_a6,
     author = {R. O. Adamyan},
     title = {Performance ratio of the generalized greedy algorithm for $q$-coloring problem},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {53--58},
     publisher = {mathdoc},
     number = {2},
     year = {2007},
     language = {hy},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2007_2_a6/}
}