1. V. N. Lapovok, V. I. Novikov, and L. I. Trusov, RU Patent No. 2 040 371 (1995).
2. L. I. Trusov, V. N. Lapovok, and V. I. Novikov, US Patent No. 5 364 586 (1994).
3. L. I. Trusov, V. P. Fedotov, and V. I. Novikov, US Patent No. 5 830 340 (1998).
4. V. I. Novikov, V. S. Vasil’kovskii, A. B. Senyavin, and A. B. Petunin, RU Patent No. 2 424 083 (2011).
5. V. I. Novikov and E. M. Solov’ev, RU Patent No. 2 579 713 (2016).