@article{bwmeta1.element.bwnjournal-article-bcpv11i1p347bwm,
author = {Tutschke, Wolfgang},
title = {Solutions with prescribed periods on the boundary components on non-linear elliptic systems of first order in multiply connected domains in the plane},
journal = {Banach Center Publications},
volume = {10},
year = {1983},
pages = {347-351},
zbl = {0577.30036},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-bcpv11i1p347bwm}
}
Tutschke, Wolfgang. Solutions with prescribed periods on the boundary components on non-linear elliptic systems of first order in multiply connected domains in the plane. Banach Center Publications, Tome 10 (1983) pp. 347-351. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-bcpv11i1p347bwm/