@article{CRMATH_2002__334_12_1089_0,
     author = {Jean Mawhin and Rafael Ortega and Aureliano M. Robles-P\'erez},
     title = {A maximum principle for bounded solutions of the telegraph equation in space dimension three},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1089--1094},
     publisher = {Elsevier},
     volume = {334},
     number = {12},
     year = {2002},
     doi = {10.1016/S1631-073X(02)02406-8},
     language = {en},
}