@article{GDZPPN00223968X,
title = {The ...-form and a generalized Maslov index.},
journal = {Manuscripta mathematica},
volume = {95},
year = {1998},
pages = {189-212},
zbl = {0920.58045},
url = {http://dml.mathdoc.fr/item/GDZPPN00223968X}
}
Bunke, U.; Koch, H. The ...-form and a generalized Maslov index.. Manuscripta mathematica, Tome 95 (1998) pp. 189-212. http://gdmltest.u-ga.fr/item/GDZPPN00223968X/