TY  - JOUR
AU  - Holger Meinert
TI  - The geometric invariants of direct products of virtually free groups.
JO  - Commentarii mathematici Helvetici
PY  - 1994
SP  - 39
EP  - 48
VL  - 69
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1994__69_4_140325/
ID  - CMH_1994__69_4_140325
ER  -