@article{AA_2006_18_4_a5,
     author = {V. Yu. Protasov},
     title = {Spectral factorization of 2-block {Toeplitz} matrices and refinement equations},
     journal = {Algebra i analiz},
     pages = {127--184},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2006_18_4_a5/}
}