@article{BUMI_2013_9_6_3_a7,
     author = {Vidossich, Giovanni},
     title = {On {Nonlinear} {Systems} of {BVPs} with {Positive} {Green's} {Functions}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {607--642},
     publisher = {mathdoc},
     volume = {Ser. 9, 6},
     number = {3},
     year = {2013},
     zbl = {0253.65047},
     mrnumber = {3202843},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2013_9_6_3_a7/}
}