SURFACE AND THIN-FILM STUDIES BY PHOTOACOUSTIC SPECTROSCOPY APPLIED TO INORGANIC AND BIOLOGICAL MATERIALS G. F. Kirkbright, R. M. Miller, D. E.M. Spillane et I. P. VickeryJ. Phys. Colloques, 44 C6 (1983) C6-243-C6-247DOI: https://doi.org/10.1051/jphyscol:1983638