@article{MM_1989_1_11_a10,
     author = {N. N. Kalitkin and N. I. Terikhova},
     title = {Natural parabolic interpolation splines},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {100--106},
     publisher = {mathdoc},
     volume = {1},
     number = {11},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1989_1_11_a10/}
}