TY  - JOUR
AU  - Viktor Schroeder
TI  - Rigidity of Nonpositively Curved Graphmanifolds.
JO  - Mathematische Annalen
PY  - 1986
SP  - 19
EP  - 26
VL  - 274
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1986__274_164083/
ID  - MAN_1986__274_164083
ER  -