@article{GDZPPN001181831, title = {Numerical Curvature Formulae with Preassigned Knots.}, journal = {Numerische Mathematik}, volume = {55}, year = {1987}, pages = {467-478}, zbl = {0652.41009}, url = {http://dml.mathdoc.fr/item/GDZPPN001181831} }
Guessab, A. Numerical Curvature Formulae with Preassigned Knots.. Numerische Mathematik, Tome 55 (1987) pp. 467-478. http://gdmltest.u-ga.fr/item/GDZPPN001181831/