@article{1102994725,
author = {Browder, Felix E.},
title = {Topological methods for non-linear elliptic equations of arbitrary order.},
journal = {Pacific J. Math.},
volume = {19},
number = {3},
year = {1966},
pages = { 17-31},
language = {en},
url = {http://dml.mathdoc.fr/item/1102994725}
}
Browder, Felix E. Topological methods for non-linear elliptic equations of arbitrary order.. Pacific J. Math., Tome 19 (1966) no. 3, pp. 17-31. http://gdmltest.u-ga.fr/item/1102994725/