@article{ZVMMF_1978_18_6_a23,
     author = {M. G. Vasil'ev and V. S. Yuferev},
     title = {A bi-cubic spline interpolation in polar coordinates},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1600--1602},
     publisher = {mathdoc},
     volume = {18},
     number = {6},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1978_18_6_a23/}
}