HIGHLY EXCITED VIBRATIONAL STATES OF CYCLIC MOLECULES INVESTIGATED BY I.C.L.A SPECTROSCOPY WITH PHOTOACOUSTIC DETECTION L. LESPADE, S. RODIN, D. CAVAGNAT et S. ABBATEJ. Phys. IV France, 01 C7 (1991) C7-517-C7-520DOI: https://doi.org/10.1051/jp4:19917136