@article{EJDE_2010__2010__a255,
     author = {Nguyen Thanh Lan},
     title = {Almost periodic solutions of higher order differential equations on {Hilbert} spaces},
     journal = {Electronic journal of differential equations},
     year = {2010},
     volume = {2010},
     zbl = {1201.34066},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a255/}
}