@article{AIHPC_2019__36_4_977_0,
     author = {Mu\~noz, Claudio and Palacios, Jos\'e M.},
     title = {Nonlinear stability of 2-solitons of the {sine-Gordon} equation in the energy space},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {977--1034},
     publisher = {Elsevier},
     volume = {36},
     number = {4},
     year = {2019},
     doi = {10.1016/j.anihpc.2018.10.005},
     mrnumber = {3955109},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.anihpc.2018.10.005/}
}