Green energetics : from the modern technology to a new philosophy : proceedings from the Fourth International Seminar : 9.-10. December 1998, Petrozavodsk, Russia
Green energetics : from the modern technology to a new philosophy : proceedings from the Fourth International Seminar : 9.-10. December 1998, Petrozavodsk, Russia
Green energetics : from the modern technology to a new philosophy : proceedings from the Fourth International Seminar : 9.-10. December 1998, Petrozavodsk, Russia
Green energetics : from the modern technology to a new philosophy : proceedings from the Fourth International Seminar : 9.-10. December 1998, Petrozavodsk, Russia