@article{DAN_1964_157_4_a5,
     author = {E. I. Zverovich},
     title = {Reduction of {Hilbert's} problem for a multiply-connected region to {Hilbert's} problem with a rational coefficient},
     journal = {Doklady Akademii Nauk},
     pages = {777--780},
     publisher = {mathdoc},
     volume = {157},
     number = {4},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_157_4_a5/}
}