@article{ERAAMS_1998_04_a3, author = {Keswani, Navin}, title = {Homotopy invariance of relative eta-invariants and {\ensuremath{\mathit{C}}*-algebra} {\ensuremath{\mathit{K}}-theory}}, journal = {Electronic research announcements of the American Mathematical Society}, pages = {18--26}, publisher = {mathdoc}, volume = {04}, year = {1998}, doi = {10.1090/S1079-6762-98-00042-0}, url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-98-00042-0/} }