@article{EJDE_2014__2014__a117,
     author = {Amanov,  Djumaklych and Ashyralyev,  Allaberen},
     title = {Well-posedness of boundary-value problems for partial differential equations of even order},
     journal = {Electronic journal of differential equations},
     year = {2014},
     volume = {2014},
     zbl = {1302.35111},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a117/}
}