@article{AIF_2011__61_6_2463_0,
     author = {Germain, Pierre},
     title = {Global existence for coupled {Klein-Gordon} equations with different speeds},
     journal = {Annales de l'Institut Fourier},
     pages = {2463--2506},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {61},
     number = {6},
     year = {2011},
     doi = {10.5802/aif.2680},
     zbl = {1255.35162},
     mrnumber = {2976318},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.2680/}
}