TY  - JOUR
AU  - Cassanas, Roch
TI  - A Gutzwiller type formula for a reduced Hamiltonian within the framework of symmetry
JO  - Comptes Rendus. Mathématique
PY  - 2005
SP  - 21
EP  - 26
VL  - 340
IS  - 1
PB  - Elsevier
UR  - http://archive.numdam.org/articles/10.1016/j.crma.2004.11.013/
DO  - 10.1016/j.crma.2004.11.013
LA  - en
ID  - CRMATH_2005__340_1_21_0
ER  -