1. Kosuke Kurokawa, Hisashi Sugiyama, Daisuke Uchida, Koichi Sauta, Kiyoshi Sakamoto, Toshimitu Ohshiro, Tamon Matsuo, Toshio Katagiri, Extended performance analysis of 70 systems in Japanese field test program, 26th IEEE PVSC September–October 3, Annaheim, CA, 1249–1252, 1997.
2. Kosuke Kurokawa, Hisashi Sugiyama, Daisuke Uchida, Kiyoshi Sakamoto, Toshimitu Ohshiro, Kenji Otani, Kazunori Fukusawa, Sophisticated verification of simple monitored data for Japanese Field Test Program, WCPEC-2nd, Second World Conference on Photovoltaic Energy Conversion, Vienna, July 6–10, 1998.
3. Kosuke Kurokawa, Realistic valuesof various parameters for PV system design, World Renewable Energy Congress V, Florence, September 19–25, 1998.
4. Daisuke Uchida, Kenji Otani, Kosuke Kurokawa, Evaluation of effective shading factor by fitting a clear-day pattern obtained from hourly maximum irradiance data, PVSEC-11th, 11th International Photovoltaic Science and Engineering Conference, Sapporo, Japan, September 20–24, 1999.
5. Kosuke Kurokawa, Daisuke Uchida, Akihiko Ymaguchi. Ken Tsuduku, Intensive Introduction of residential PV systems and their monitoring by citizen-oriented efforts in Japan, 16th European Photovoltaic Solar Energy Conference and Exhibition, Glasgow, May 1–5, 2000.