1. S. F. Levin, Izmer. Tekh., No. 12, 16 (1991);
2. Measur. Tech., 34, No. 12, 1221 (1991).
3. S. F. Levin, Kontr.-Izmer. Pribory Sistemy, No. 3, 21 (2000).
4. GOST 28195-89, Estimation of the Quality of Computer Programs: General Assumptions [in Russian].
5. GOST 28806-90, The Quality of Computer Programs: Terms and Definitions [in Russian].