@article{AIHPA_1998__68_3_315_0,
     author = {Cazenave, Thierry and Shatah, Jalal and Tahvildar-Zadeh, A. Shadi},
     title = {Harmonic maps of the hyperbolic space and development of singularities in wave maps and {Yang-Mills} fields},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {315--349},
     publisher = {Gauthier-Villars},
     volume = {68},
     number = {3},
     year = {1998},
     mrnumber = {1622539},
     zbl = {0918.58074},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1998__68_3_315_0/}
}