00664naa#a2200169#i#450# EN\\bibl\103335 20250919064903.5 2782-4586 20250904b2025####ek#y0engy0150####ca RU Research of methods and criteria for assessing the effectiveness of the management system at a communications services enterprise Journal article Moscow ITBO University 2025 5 с. Journal article local Экономическая политика. Управление и планирование в экономике. 338.2 Baryshnikov Petr Vladimirovich jomeam.ru