%0 Journal Article %A Greco, Carlo %T The Dirichlet-problem for harmonic maps from the disk into a lorentzian warped product %J Annales de l'I.H.P. Analyse non linéaire %D 1993 %P 239-252 %V 10 %N 2 %I Gauthier-Villars %U http://archive.numdam.org/item/AIHPC_1993__10_2_239_0/ %G en %F AIHPC_1993__10_2_239_0