Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1989_3_2_a10, author = {Rumen K. Uluchev}, title = {B-Splines with {Birkhoff} {Knots.} {Applications} in the {Approximations} and {Shape-Preserving} {Interpolation}}, journal = {Mathematica balkanica}, pages = {225}, publisher = {mathdoc}, volume = {3}, number = {2}, year = {1989}, url = {http://geodesic.mathdoc.fr/item/MABA_1989_3_2_a10/} }
Rumen K. Uluchev. B-Splines with Birkhoff Knots. Applications in the Approximations and Shape-Preserving Interpolation. Mathematica balkanica, Tome 3 (1989) no. 2, p. 225. http://geodesic.mathdoc.fr/item/MABA_1989_3_2_a10/