@article{DAN_1968_181_1_a3,
     author = {V. M. Kalinin},
     title = {Analogues of {Stirling's} formula},
     journal = {Doklady Akademii Nauk},
     pages = {18--21},
     publisher = {mathdoc},
     volume = {181},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_181_1_a3/}
}