1. 1) Salmonella Subcommittee: The Third International Congress for Micro biology, New York, Repot of Proceedings 1939.
2. 2) Sniosawa, S., Anjo, S. & Kitaoka, M.: Studies on Leptospira biflexa (II) ; Iji-Shimbun, No. 1236, 678-690, 1928 (in Japanese) .
3. 3) Shiosawa, S., Kitaoka, M. & Inoue, K.: Studies on Leptospira biflexa (III) ; Nihon-Densenbyo-Gakkai Zasshi, 7, 1177-1197, 1933 (in Japanese) .
4. 4) Kitaoka, M.: Ueber die Typenfrage der Rattenstaemme von Leptospira icterohaemorrhagiae; Nihon-Densenbyo-Gakkai Zasshi, 6, 1249-1274, 1933 (in Japanese) .
5. 5) Kitaoka, M.: Zur Typenfrage der Leptospira icterohaemorrhagiae und pseudo-icterohaemorrhagiae ; Zbl. Bakt., I. Orig., 143, 465-468, 1939.