@article{VMP_2012_13_1_a9,
     author = {A. A. Makarov},
     title = {Knot insertion and knot removal matrices for nonpolynomial splines},
     journal = {Numerical methods and programming},
     pages = {74--86},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMP_2012_13_1_a9/}
}