@article{IVM_1967_5_a11,
     author = {Yu. I. Romanov},
     title = {On the set of $M_{\alpha+1}$-countably-valued points of the operation $\Phi_{M_{\alpha+}1}=R_N^\alpha$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {91--100},
     publisher = {mathdoc},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1967_5_a11/}
}