@article{GDZPPN001183559,
title = {An Optimal Order Multigrid Method for Biharmonic, C1 Finite Element Equations.},
journal = {Numerische Mathematik},
volume = {56},
year = {1989},
pages = {613-624},
zbl = {0667.65089},
url = {http://dml.mathdoc.fr/item/GDZPPN001183559}
}
Zhang, Shangyou. An Optimal Order Multigrid Method for Biharmonic, C1 Finite Element Equations.. Numerische Mathematik, Tome 56 (1989) pp. 613-624. http://gdmltest.u-ga.fr/item/GDZPPN001183559/