@article{EJDE_2002__2002__a276,
     author = {Haile,  Brian},
     title = {Analytic solutions of \(n\)-th order differential equations at a singular point},
     journal = {Electronic journal of differential equations},
     year = {2002},
     volume = {2002},
     zbl = {1004.34080},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a276/}
}