Patarchanov, P., & Патарчанов, П. (2019). Social and Economic Aspects in the Contemporary Regional and Local Development of Industrially Depressed Areas. Ecology, Economics, Education and Legislation : Conference Proceedings : Volume 19 : Issue 5.1 - 5.4 : 19th International Multidisciplinary Scientific Geoconference SGEM 2019, 30 June - 6 July, SGEM Issue 5. 3. Environmental Economics 653-660.