@misc{ZNSL_1979_87_a0,
     title = {Pref{\cyra}{\cyrs}e},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--6},
     publisher = {mathdoc},
     volume = {87},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_87_a0/}
}