@article{DAN_1971_197_3_a13,
     author = {K. P. Stanyukovich},
     title = {Closed model of the {Universe} with variable $\kappa$},
     journal = {Doklady Akademii Nauk},
     pages = {550--553},
     publisher = {mathdoc},
     volume = {197},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_197_3_a13/}
}