%0 Journal Article %A Georgi E. Karadzhov %T Uniform Semi-Classical Asymptotics of the Spectral Function for Schreudinger Operators and Periodic Bicharacteristics %J Mathematica balkanica %D 1990 %P 173 %V 4 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_1990_4_2_a5/ %F MABA_1990_4_2_a5