@article{IVM_1990_4_a3,
     author = {S. V. Dorofeev and A. N. Sherstnev},
     title = {Functions of frame type and their applications},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {23--29},
     publisher = {mathdoc},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1990_4_a3/}
}