TY  - JOUR
AU  - W. Lück
TI  - Approximation L2-invariants by Their Finite-Dimensional Analogues.
JO  - Geometric and functional analysis
PY  - 1994
SP  - 455
EP  - 482
VL  - 4
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/GFA_1994__4_6_58171/
ID  - GFA_1994__4_6_58171
ER  -