A SIMPLIFIED MODEL FOR THE DEPOSITION KINETICS OF GD a-Si : H FILMS A. Matsuda, M. Matsumura, K. Nakagawa, S. Yamasaki et K. Tanaka J. Phys. Colloques, 42 C4 (1981) C4-687-C4-690 DOI: 10.1051/jphyscol:19814152