Raskin V. G. Complex estimation of enterprise ecological activities as an ecological monitoring element / V. G. Raskin, M. I. Baumgarten // Fundamental and applied problems of environmental protection. Vol. 5 : International conference, September, 12-16, 1995, Tomsk : abstracts. Tomsk, 1995. Vol. 5 : Economic, legal and social aspects of rational use of natural resources, ecological safety and human activities ; Ecological education. P. 28