@article{GDZPPN002425750,
title = {On Two-Dimensional Elliptic Systems with a One-sided Condition.},
journal = {Mathematische Zeitschrift},
volume = {177},
year = {1981},
pages = {493-500},
zbl = {0474.35046},
url = {http://dml.mathdoc.fr/item/GDZPPN002425750}
}
Wiegner, Michael. On Two-Dimensional Elliptic Systems with a One-sided Condition.. Mathematische Zeitschrift, Tome 177 (1981) pp. 493-500. http://gdmltest.u-ga.fr/item/GDZPPN002425750/