List of citations in Numdam for : Global weak solutions for dimensional wave maps into homogeneous spaces
Annales de l'I.H.P. Analyse non linéaire, Volume 16 (1999) no. 4, pp. 411-422.
Annales de l'I.H.P. Analyse non linéaire, Volume 15 (1998) no. 6, pp. 725-754.