@article{02206530,
title = {The index of projective families of elliptic operators.},
journal = {Geometry \& Topology},
volume = {5},
year = {2005},
pages = {341-373},
doi = {10.2140/gt.2005.9.341},
zbl = {1083.58021},
language = {en},
url = {http://dml.mathdoc.fr/item/02206530}
}
Mathai, Varghese; Melrose, Richard B.; Singer, Isadore M. The index of projective families of elliptic operators.. Geometry & Topology, Tome 5 (2005) pp. 341-373. doi : 10.2140/gt.2005.9.341. http://gdmltest.u-ga.fr/item/02206530/