1. M. I. Arustamov, The Question of the Etiology of Bronchopneumonia of the Croupous Type, In Russian. Dissertation, St. Petersburg, 1889.
2. V. M. Berman, P. I. Benevalensky, and B. P. Ugryumov, Trudy Lenin. Tuberkuloz. Nauchno. Issledovatel. Inst. 1933, pp. 241–256.
3. I. P. Dolgachev, Byull. Eksptl. Biol. i Med., 1953, Vol. 36, issue 4 No. 16, pp. 15–17.
4. N. V. Konstantinovich, Arkh. Patol., 1946, issue 8, Vol. 91, pp. 91–94.
5. V. A. Lebedinsky, The Etiology of Croupous Pnemnonia In Russian. Dissertation, St. Petersburg, 1885.