@article{GDZPPN001168649, title = {Two-Dimensional Polynomial Splines.}, journal = {Numerische Mathematik}, volume = {15}, year = {1970}, pages = {1-14}, zbl = {0181.17605}, url = {http://dml.mathdoc.fr/item/GDZPPN001168649} }
SHAH, J.M. Two-Dimensional Polynomial Splines.. Numerische Mathematik, Tome 15 (1970) pp. 1-14. http://gdmltest.u-ga.fr/item/GDZPPN001168649/