@article{10_1090_S1079_6762_98_00042_0,
     author = {Keswani, Navin},
     title = {Homotopy invariance of relative eta-invariants and {\dh}{\textparagraph}*-algebra {\dh}{\textthreequarters}-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/}
}