@article{GDZPPN001166891,
title = {L-Splines.},
journal = {Numerische Mathematik},
volume = {10},
year = {1967},
pages = {345-369},
url = {http://dml.mathdoc.fr/item/GDZPPN001166891}
}
VARGA, R.S.; SCHULTZ, M.H. L-Splines.. Numerische Mathematik, Tome 10 (1967) pp. 345-369. http://gdmltest.u-ga.fr/item/GDZPPN001166891/