@article{GDZPPN002415674, title = {Zeros of Splines and Birkhoff's Kernel.}, journal = {Mathematische Zeitschrift}, volume = {142}, year = {1975}, pages = {173-180}, zbl = {0286.41014}, url = {http://dml.mathdoc.fr/item/GDZPPN002415674} }
Lorentz, George G. Zeros of Splines and Birkhoff's Kernel.. Mathematische Zeitschrift, Tome 142 (1975) pp. 173-180. http://gdmltest.u-ga.fr/item/GDZPPN002415674/