@article{GDZPPN002224402,
title = {Time Decay for Nonlinear Wave Equations in Two Space Dimensions.},
journal = {Manuscripta mathematica},
volume = {39},
year = {1982},
pages = {387-400},
zbl = {0504.35066},
url = {http://dml.mathdoc.fr/item/GDZPPN002224402}
}
Pecher, Hartmut; Glassey, Robert. Time Decay for Nonlinear Wave Equations in Two Space Dimensions.. Manuscripta mathematica, Tome 39 (1982) pp. 387-400. http://gdmltest.u-ga.fr/item/GDZPPN002224402/