“METHODS FOR IMPROVING THE EFFICIENCY OF CONTROL OF SEWAGE TREATMENT PLANTS ENVIRONMENTAL SERVICES OF KARELIA (CASE STUDY OF SURFACE RELIEF STORM WATER IN WATER PROJECTS)”. Municipal Economy of Cities. Series: «Economy Science», no. 107, Oct. 2013, pp. 191-7, https://khges.kname.edu.ua/index.php/khges/article/view/288.