1. Liquid extraction in perforated-plate and packed towers;ALLERTON;Trans. Am. Inst. Chemical Engrs.,1943
2. Countercurrent extraction of benzoic acid between toluene and water — performance of spray and packed columns;APPEL;I. E. C.,1937
3. Limiting flow phenomena in packed liquid-liquid extraction columns;BALLARD;I. E. C.,1950
4. Packed tower performance at high liquor rates;COOPER;Trans. Am. Inst. Chemical Engrs.,1941
5. Liquid hold-up and flooding in packed towers;ELGIN;I. E. C.,1939