%0 Journal Article %A Denis Perrot %T Secondary invariants for Frechet algebras and quasihomomorphisms %J Documenta mathematica %D 2008 %P 275-363 %V 13 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/249/ %R 10.4171/dm/249 %F 10_4171_dm_249