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2. in: II–VI Semiconducting Compounds, Ed. Benjamin, New York 1967.
3. Photoconductivity of Solids, Wiley, 1960.
4. , and , 3rd European Communities Photovoltaic Solar Energy Conf., Cannes 1980, (p. 340).
5. Evidence for Photochemical Changes in Traps in CdS Crystals