@article{01501870,
title = {Multiple solutions for a system of },
journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
volume = {19},
year = {2000},
pages = {511-528},
zbl = {1160.34313},
language = {en},
url = {http://dml.mathdoc.fr/item/01501870}
}
Wong, P. J. Y.; Agarwal, R. P. Multiple solutions for a system of . Zeitschrift für Analysis und ihre Anwendungen, Tome 19 (2000) pp. 511-528. http://gdmltest.u-ga.fr/item/01501870/