@article{1207834552, author = {Mathai, R. B. Melrose and Singer, I. M.}, title = {Equivariant and fractional index of projective elliptic operators}, journal = {J. Differential Geom.}, volume = {78}, number = {1}, year = {2008}, pages = { 465-473}, language = {en}, url = {http://dml.mathdoc.fr/item/1207834552} }
Mathai, R. B. Melrose; Singer, I. M. Equivariant and fractional index of projective elliptic operators. J. Differential Geom., Tome 78 (2008) no. 1, pp. 465-473. http://gdmltest.u-ga.fr/item/1207834552/