@article{EJDE_2011__2011__a45,
     author = {Gavruta,  Pasc and Jung,  Soon-Mo and Li,  Yongjin},
     title = {Hyers-Ulam stability for second-order linear differential equations with boundary conditions},
     journal = {Electronic journal of differential equations},
     year = {2011},
     volume = {2011},
     zbl = {1230.34020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a45/}
}