@article{GDZPPN001179306,
title = {A Three-Dimensional Quadratic Nonconforming Element.},
journal = {Numerische Mathematik},
volume = {46},
year = {1985},
pages = {269-280},
zbl = {0577.65008},
url = {http://dml.mathdoc.fr/item/GDZPPN001179306}
}
Fortin, M. A Three-Dimensional Quadratic Nonconforming Element.. Numerische Mathematik, Tome 46 (1985) pp. 269-280. http://gdmltest.u-ga.fr/item/GDZPPN001179306/