1. V. A. Viktorov, V. P. Gundarov, and E. V. Matveev, Med. Tekh., No. 2, 4–13 (1997).
2. V. A. Viktorov, Med. Tekh., No. 6, 3–11 (1997).
3. A. I. Vishnyakov and E. V. Matveev, Med. Tekh., No. 3, 61–62 (1989).
4. E. V. Matveev, D. S. Nadezhdin, and A. V. Kalinin, Med. Tekh., No. 2, 39–41 (1991).