@article{urn:eudml:doc:38717,
title = {Positive solutions of systems of boundary value problems.},
journal = {Extracta Mathematicae},
volume = {18},
year = {2003},
pages = {23-32},
zbl = {1046.34044},
mrnumber = {MR1989295},
language = {en},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:38717}
}
Herzog, Gerd; Lemmert, Roland. Positive solutions of systems of boundary value problems.. Extracta Mathematicae, Tome 18 (2003) pp. 23-32. http://gdmltest.u-ga.fr/item/urn:eudml:doc:38717/