@article{1250129784,
author = {Westreich, David},
title = {Bifurcation of $2m$th order nonlinear elliptic partial differential equations},
journal = {Rocky Mountain J. Math.},
volume = {7},
number = {4},
year = {1977},
pages = { 793-798},
language = {en},
url = {http://dml.mathdoc.fr/item/1250129784}
}
Westreich, David. Bifurcation of $2m$th order nonlinear elliptic partial differential equations. Rocky Mountain J. Math., Tome 7 (1977) no. 4, pp. 793-798. http://gdmltest.u-ga.fr/item/1250129784/