TY - JOUR AU - Michael Wolf TI - Harmonic maps form surfaces to R-trees. JO - Mathematische Zeitschrift PY - 1995 SP - 577 EP - 594 VL - 218 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1995__218_4_174749/ ID - MZ_1995__218_4_174749 ER -