TY  - JOUR
AU  - Helmut Kaul
AU  - Stefan Hildebrandt
AU  - Kjell-Ove Widman
TI  - Harmonic mappings into Riemannian manifolds with non-positive sectional curvature.
JO  - Mathematica Scandinavica
PY  - 1975
SP  - 257
EP  - 263
VL  - 37
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1975__37_166443/
ID  - MS2_1975__37_166443
ER  -