@article{GDZPPN000461970,
title = {Approximation L2-invariants by Their Finite-Dimensional Analogues.},
journal = {Geometric and functional analysis},
volume = {4},
year = {1994},
pages = {455-482},
zbl = {0853.57021},
url = {http://dml.mathdoc.fr/item/GDZPPN000461970}
}
Lück, W. Approximation L2-invariants by Their Finite-Dimensional Analogues.. Geometric and functional analysis, Tome 4 (1994) pp. 455-482. http://gdmltest.u-ga.fr/item/GDZPPN000461970/