@article{GDZPPN001167715, title = {The Third Boundary Value Problem for Elliptic Equations.}, journal = {Numerische Mathematik}, volume = {11}, year = {1968}, pages = {322-326}, zbl = {0167.45601}, url = {http://dml.mathdoc.fr/item/GDZPPN001167715} }
KEAST, P. The Third Boundary Value Problem for Elliptic Equations.. Numerische Mathematik, Tome 11 (1968) pp. 322-326. http://gdmltest.u-ga.fr/item/GDZPPN001167715/