@article{NUMA_1967__10_131795,
     author = {R.S. VARGA and M.H. SCHULTZ},
     title = {L-Splines.},
     journal = {Numerische Mathematik},
     pages = {345--369},
     publisher = {mathdoc},
     volume = {10},
     year = {1967},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1967__10_131795/}
}