1. Microcomputer Medical Systems: Design and Application [in Russian], Moscow (1983), p. 381.
2. Microcomputer Medical Systems: Design and Application [in Russian], Moscow (1983), p. 379.
3. Microcomputer Medical Systems: Design and Application [in Russian], Moscow (1983), p. 382.
4. D. N. Ghista (editor), Cardiovascular Engineering, Basel (1983), pp. 134–137.
5. E. M. Carruthers, Cardiovascular Monitors, United Kingdom Patent Application No. 2058355 A GB, Patent Office, London (1981), p. 4.