TY JOUR TI Event-Marketing As a Key Tool of the Complex Progress in the Service Sector KW event marketing KW event marketing KW promotion KW promotion strategy KW marketing complex KW life cycle KW marketing KW brand KW marketing tools JO Scientific Research and Development. Economics of the Firm AU Reznik, G.A. AU Sokolkova, T.A. PY 2019 IS 8 PB INFRA-M Academic Publishing LLC.