Title: Mezhdunarodnyĭ seminar OON po solnechnomu nagrevu i okhlazhdenii͡u︡ i drugim vozobnovli͡a︡emym istochnikam ėnergii, Moskva, 21-28 senti͡a︡bri͡a︡ 1987 g
Subjects: Congresses, Renewable energy sources, Solar energy