Szuszkiewicz, E. and Bartlomiej, N. (1999) “ENVIRONMENTAL PROTECTION IN THE PROJECT „BALANCED DEVELOPMENT IN THE SPREE-NEISSE-BOBER EUROREGION””, ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, 1, pp. 196–205. doi:10.17770/etr1999vol1.1875.