@article{UZERU_2011_3_a3,
     author = {G. M. Topikyan},
     title = {Explicit factorization of a $(P,Q)$-circulant matrix-functions},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {23--30},
     publisher = {mathdoc},
     number = {3},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2011_3_a3/}
}