@article{IVM_1964_1_a5,
     author = {A. I. El'tsov},
     title = {On the squarability in the {Lebesgue} sense of a~type of ruled surface},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {40--45},
     publisher = {mathdoc},
     number = {1},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1964_1_a5/}
}