1. Nichtthermisch Aktivierte Chemie;Stiller,1987
2. Beitrag zur Druck- laugung von Zinksulfid;Exner;Erzmetall,1969
3. Intensification of the magnetic separation of fine chalcopyrite ores by means of irradiation by electrons;Florek,1992
4. Transition of sulphides by activation;Kulebakin,1983
5. Tribochemistry;Heinicke,1984