1. ADLEY, F. E., and WISEHART, D. E. (1961) 7th AEC Air Cleaning Conference, USAEC.
2. BILLINGS, C. E. (1966) 9th AEC Air Cleaning Conference, USAEC.
3. Simultaneous Removal of Acid Gases, Mists, and Fumes with Mineral Wool Filters
4. High Efficiency Air Filtration;DORMAN,1964