@article{EJDE_2008__2008__a44,
     author = {Dram\'e, Abdou K. and Costa, David G.},
     title = {Existence of positive solutions for semi-positone systems},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2008},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a44/}
}