Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1983__42_132864, author = {Florencio Utreras}, title = {Natural {Spline} {Functions,} {Their} {Associated} {Eigenvalue} {Problem.}}, journal = {Numerische Mathematik}, pages = {107--118}, publisher = {mathdoc}, volume = {42}, year = {1983}, zbl = {0522.41011}, url = {http://geodesic.mathdoc.fr/item/NUMA_1983__42_132864/} }
Florencio Utreras. Natural Spline Functions, Their Associated Eigenvalue Problem.. Numerische Mathematik, Tome 42 (1983), pp. 107-118. http://geodesic.mathdoc.fr/item/NUMA_1983__42_132864/