1. A. A. Voitkevich, Izv. AN SSSR. Seriya biol., No. 2 (1947), p. 177.
2. A. A. Voitkevich, Transaction of the Department of General Biology of the Kazak Medical Institute, No. 2 (1953), p. 5.
3. A. A. Voitkevich, Dokl. AN SSSR. Novaya seriya, Vol. 95, No. 5 (1954), p. 1125.
4. A. A. Voitkevich and G. V. Khomullo, Dokl. AN SSSR. Novaya seriya, Vol. 103, No. 6 (1955), p. 1123.
5. N. S. Demidenko-Grabar', in the book: Thyroid Disease [in Russian] (Kiev, 1956), p. 91.