1. Allison, C. C., 1939. Bacterial ring rot of potatoes in Ohio. U. S. Bur. Pl. Ind., Pl. Dis. Reporter 23: 346.
2. Anonymous, 1938. The occurrence in the United States of the tuber ring rot and wilt of the potato. U. S. Bur. Pl. Ind., Pl. Dis. Reporter 22: 444–445.
3. Appel, Otto, 1906. Neuere Untersuchungen über Kartoffel und Tomatener-krankungen. Jahresber. Ver. angew. Bot. 3: 122–136.
4. Ark, P. A., 1939. Bacterial ring rot of potatoes in California, Pl. Dis. Reporter 23 (7): 125.
5. —, 1941. The use of iodine in the control of potato ring rot and scab. Phytopath. 31: 954–956.