TY JOUR TI FEATURES OF MARKETING PROCESSES BASED ON DIGITALIZATION AND UBERIZATION OF THE TOURISM BUSINESS KW travel business KW mobile apps KW marketing KW feedback KW LTV KW customer loyalty JO Scientific Papers Collection of the Angarsk State Technical University AU Zarubina, Y.V. PY 2021 IS 2021 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»