@article{VSGTU_2011_2_a24,
     author = {I. S. Ryabtsov},
     title = {On representation of {Parseval} frames},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {194--199},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2011_2_a24/}
}