@article{UZERU_2006_3_a1,
     author = {G. H. Sahakyan},
     title = {About characteristic equation for two-parameter matrix equation},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {21--24},
     publisher = {mathdoc},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2006_3_a1/}
}