@article{ZNSL_1974_45_a1,
     author = {Yu. D. Burago},
     title = {On a~theorem of {Ju.} {A.~Aminov}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {53--55},
     year = {1974},
     volume = {45},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1974_45_a1/}
}