@article{01331694,
title = {Oblique derivative problems for elliptic systems of second order equations in infinite domains.},
journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
volume = {18},
year = {1999},
pages = {193-204},
zbl = {0939.35057},
language = {en},
url = {http://dml.mathdoc.fr/item/01331694}
}
Begehr, H.; Wen, G.C. Oblique derivative problems for elliptic systems of second order equations in infinite domains.. Zeitschrift für Analysis und ihre Anwendungen, Tome 18 (1999) pp. 193-204. http://gdmltest.u-ga.fr/item/01331694/