@article{EJDE_2005__2005__a114,
     author = {Ghouali,  Noureddine and Touaoula,  Tarik Mohamed},
     title = {Nonautonomous ultraparabolic equations applied to population dynamics},
     journal = {Electronic journal of differential equations},
     year = {2005},
     volume = {2005},
     zbl = {1090.35111},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a114/}
}