Yves COLIN de VERDIERE
BOHR-SOMMERFELD RULES TO ALL ORDERS
(330K, Postscript)

ABSTRACT.  We give explicit formulae for the Bohr-Sommerfeld quantization rules
in the case of a one degree of freedom semi-classical Hamiltonian.
Those formulae are local: they involve only local computation,
based on Moyal formula, in the phase space.