TY JOUR TI Omnichannel marketing and consumer loyalty under restricted access to digital platforms KW omnichannel KW omnichannel marketing KW consumer loyalty KW digital platforms KW customer experience KW digital transformation JO Russian Journal of Management AU Nabieva, A.R. AU DASHKOV, L.P. AU Karimov, B.N. PY 2026 IS PB Publishing Center RIOR