@article{EJDE_1998__1998__a12,
     author = {Doronin,  G.G. and Lar'kin,  N.A. and Souza,  A.J.},
     title = {A hyperbolic problem with nonlinear second-order boundary damping},
     journal = {Electronic journal of differential equations},
     year = {1998},
     volume = {1998},
     zbl = {0915.35063},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1998__1998__a12/}
}