1. Yasnogorodskii, V.G.,Elektroterapiya (Electric Therapy), Moscow: Meditsina, 1987.
2. Devyatkov, N.D., Golant, M.B., and Betskii, O.V.,Millimetrovye volny i ikh rol’ v protsessakh zhiznedeyatel’nosti (Millimeter Waves and Their Role in Processes of Vital Activity), Moscow: Radio i Svyaz’, 1991.
3. Sit’ko, S. P., USSR Inventor's Certificate no. 1 611 345, Kl. A 61 N 5/02,Byull. Izobret., 1990, no. 47.
4. Boyko, N.I., Safronov, I.A., and Tondii, L.D., Patent no. 23040 of Ukraine, Kl. 6A 61 N 5/02,Byull. Izobret., 1998, no. 3.
5. Boyko, N.I., Safronov, I.A., and Tondii, L.D., RF Inventor’s Certificate, no. 2086271, Kl. 6 A 61 N 5/02,Byull. Izobret., 1997, no. 22.