Title: IV Vserossiĭskai͡a nauchno-prakticheskai͡a konferent͡sii͡a Ėkologii͡a i resurso- i ėnergosberegai͡ushchie tekhnologii na predprii͡atii͡akh narodnogo khozi͡aĭstva
Subjects: Environmental protection, Congresses, Energy conservation, Technological innovations
Places: Russia (Federation)