%0 Journal Article %A Cazenave, Thierry %A Shatah, Jalal %A Tahvildar-Zadeh, A. Shadi %T Harmonic maps of the hyperbolic space and development of singularities in wave maps and Yang-Mills fields %J Annales de l'I.H.P. Physique théorique %D 1998 %P 315-349 %V 68 %N 3 %I Gauthier-Villars %G en %F AIHPA_1998__68_3_315_0