00677naa#a2200181#i#450# EN\\bibl\46405 20241127094018.3 2072-9502 20211029b2021####ek#y0engy0150####ca RU REGRESSION MODELS OF ASSESSING INFLUENCE OF ECONOMIC INDICATORS ON AMOUNT OF SERVICES IN INFORMATION AND COMMUNICATION TECHNOLOGIES Journal article Astrakhan Astrakhan State Technical University 2021 8 с. Journal article local Экономика. Экономические науки. 33 Noskov Sergey Ivanovich Vergasov Alexandr Sergeevich vestnik.astu.org