OPTICAL PROPERTIES OF POLYCRYSTALLINE THIN FILMS OF GaAs OBTAINED BY MBD C. Paparoditis, A. Rideau, G. Monnom et Ph. Gaucherel J. Phys. Colloques, 43 C1 (1982) C1-159-C1-164 DOI: 10.1051/jphyscol:1982122