@article{ZVMMF_1981_21_1_a2,
     author = {Z. I. Krupka},
     title = {Arithmetic operations on continued fractions},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {11--17},
     year = {1981},
     volume = {21},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_1_a2/}
}