TY JOUR TI On the use of classifiers OK 020-95, OK 021-95 and OK 022-95 in the calculation of the quality of technical products KW classifiers KW product quality KW technical products KW mathematical models KW quality management JO Journal of Natural Sciences Research AU Aminov, A.E. AU Martishkin, V.. PY 2020 IS 5 PB INFRA-M Academic Publishing LLC.