@article{GDZPPN001182609,
title = {Piecewise Polynomial Spaces and Geometric Continuity of Curves.},
journal = {Numerische Mathematik},
volume = {56},
year = {1989},
pages = {319-338},
zbl = {0638.65010},
url = {http://dml.mathdoc.fr/item/GDZPPN001182609}
}
Micchelli, Charles A.; Dyn, Nira. Piecewise Polynomial Spaces and Geometric Continuity of Curves.. Numerische Mathematik, Tome 56 (1989) pp. 319-338. http://gdmltest.u-ga.fr/item/GDZPPN001182609/