@article{MZ_1987__196_173858,
     author = {Joel D. Avrin},
     title = {Energy {Convergence} {Results} for {Strongly} {Damped} {Nonlinear} {Wave} {Equations.}},
     journal = {Mathematische Zeitschrift},
     pages = {7--12},
     publisher = {mathdoc},
     volume = {196},
     year = {1987},
     zbl = {0603.35065},
     url = {http://geodesic.mathdoc.fr/item/MZ_1987__196_173858/}
}