@article{DE_1978_14_9_a21,
     author = {A. F. Zubova},
     title = {An investigation of the oscillations of beams of variable cross section},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1698--1700},
     publisher = {mathdoc},
     volume = {14},
     number = {9},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_9_a21/}
}