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2. Jirovec, O., Breindl, V., Kucera, K., and Sebek, V. (1942). Zbl. Bakt., I. Abt. Orig., 148, 338.
3. Kerr, W. R., McGirr, J. L., and Robertson, M. (1949). J. conmp. Path., 59, 133.
4. Kerr, W. R., McGirr, J. L., and Robertson, M. and Robertson, M. (1946a). Ibid., 56, 38.
5. Kerr, W. R., McGirr, J. L., and Robertson, M. (1946b). Ibid., 56, 101.