PHOTOELECTRICAL PHENOMENA AT THE ICE-SEMICONDUCTOR INTERFACE V.A. CHESNAKOV, V.F. PETRENKO, I.A. RYZHKIN and A.V. ZARETSKII J. Phys. Colloques, 48 C1 (1987) C1-99-C1-103 DOI: 10.1051/jphyscol:1987114