1. 12th IEEE Photovoltaic Specialists Conf.;Fischer,1976
2. 11th IEEE Photovoltaic Specialists Conf.;Chu,1975
3. Reducing grain‐boundary effects in polycrystalline silicon solar cells
4. 14th IEEE Photovoltaic Specialists Conf.;Koliwad,1980
5. 11th IEEE Photovoltaic Specialists Conf.;Soclof,1975