The influence of technological improvements in the coal preparation plant of the Dukla locality on the contamination of waste waters with substances

by Moháčová, Alice, Opiolová, Radomila
Source: 1. 5th Conference on environment and mineral processing, part II 1. Ostrava : Vysoká škola báňská - Technická univerzita, 2000 1. 807078766X 1. S. 757-761