@article{EJDE_2009__2009__a128,
     author = {D'Apice,  Ciro and El Habil,  Brahim and Rhandi,  Abdelaziz},
     title = {Positivity and stability for a system of transport equations with unbounded boundary perturbations},
     journal = {Electronic journal of differential equations},
     year = {2009},
     volume = {2009},
     zbl = {1183.47037},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a128/}
}