@article{01017004, title = {The H\"ormander and Maslov classes and Fomenko's conjecture.}, journal = {Georgian Mathematical Journal}, volume = {4}, year = {1997}, pages = {185-200}, doi = {10.1023/A:1022986201817}, zbl = {0877.58027}, language = {en}, url = {http://dml.mathdoc.fr/item/01017004} }
Tevdoradze, Z. The Hörmander and Maslov classes and Fomenko's conjecture.. Georgian Mathematical Journal, Tome 4 (1997) pp. 185-200. doi : 10.1023/A:1022986201817. http://gdmltest.u-ga.fr/item/01017004/