@article{GDZPPN001179497, title = {On Finite Element Methods for the Neumann Problem.}, journal = {Numerische Mathematik}, volume = {46}, year = {1985}, pages = {587-598}, zbl = {0571.65099}, url = {http://dml.mathdoc.fr/item/GDZPPN001179497} }
Molchanov, I.N.; Galba, E.F. On Finite Element Methods for the Neumann Problem.. Numerische Mathematik, Tome 46 (1985) pp. 587-598. http://gdmltest.u-ga.fr/item/GDZPPN001179497/