FIELD-INDUCED STRUCTURAL CHANGES IN ADSORBED LAYERS OF POLAR MOLECULES STUDIED BY PHOTON-STIMULATED DESORPTION S. JAENICKE, A. CISZEWSKI, J. DÖSSELMANN, W. DRACHSEL, J.H. BLOCK et D. MENZEL J. Phys. Colloques, 49 C6 (1988) C6-191-C6-196 DOI: 10.1051/jphyscol:1988632