@article{GDZPPN000462594,
title = {Semiclassical Asymptotics on Covering Manifolds and Morse Inequalities.},
journal = {Geometric and functional analysis},
volume = {6},
year = {1996},
pages = {370-410},
zbl = {0861.58039},
url = {http://dml.mathdoc.fr/item/GDZPPN000462594}
}
Shubin, M.A. Semiclassical Asymptotics on Covering Manifolds and Morse Inequalities.. Geometric and functional analysis, Tome 6 (1996) pp. 370-410. http://gdmltest.u-ga.fr/item/GDZPPN000462594/