@article{GDZPPN002487187,
title = {Conormal Bundles with Vanishing Maslov Form.},
journal = {Monatshefte f\"ur Mathematik},
volume = {109},
year = {1990},
pages = {305-310},
zbl = {0713.53019},
url = {http://dml.mathdoc.fr/item/GDZPPN002487187}
}
Vaisman, Izu. Conormal Bundles with Vanishing Maslov Form.. Monatshefte für Mathematik, Tome 109 (1990) pp. 305-310. http://gdmltest.u-ga.fr/item/GDZPPN002487187/