应该是这篇文献：
1999
"Perspectives of Crystalline Silicon Thin Film Solar Cells"
J. H. Werner and R. B. Bergmann, in: Technicals Digest 11th Intern. Photov. Science and Engin. Conf., Sapporo (Tokyo University of Agriculture & Technology, Tokyo, 1999), p. 923-925
https://www.bias.de/profile/orga ... amp;set_language=en，

Werner and Bergmann, 1999 Werner J., Bergmann, R., 1999. Perspectives of crystalline silicon thin film solar cells. In: Technical Digest of 12th International Photovoltaic Science and Engineering Conference, Sapporo, Japan, pp. 923–925.