@article{EJDE_2012__2012__a24,
     author = {Boutaous,  Fatiha and Labbas,  Rabah and Sadallah,  Boubaker-Khaled},
     title = {Fractional-power approach for solving complete elliptic abstract differential equations with variable-operator coefficients},
     journal = {Electronic journal of differential equations},
     year = {2012},
     volume = {2012},
     zbl = {1256.34047},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a24/}
}