TY JOUR TI DIGITAL TRANSFORMATION AND DEVELOPMENT OF THE PLATFOM SERVICES MARKET IN RUSSIA KW paid services market KW digital transformation KW Russian economy KW service economy KW import substitution KW and consumer demand JO Scientific Papers Collection of the Angarsk State Technical University AU Cheklaukova, E.L. AU Nemarov, P.A. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»