@article{UZERU_2015_1_a9,
     author = {N. N. Davtyan and R. R. Kamalyan},
     title = {Some relations between the $\mu$-parameters of regular graphs},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {47--51},
     publisher = {mathdoc},
     number = {1},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2015_1_a9/}
}