TY JOUR TI Digital Footprints in Ecology: Empirical Research KW air quality KW internet ecology KW digital footprints KW social networks KW VKontakte KW data mining KW monotowns KW Cherepovets JO Virtual Communication and Social Networks AU Schekotin, E.V. AU Dunaeva, D.O. AU Basina, P.A. AU Vakhrameev, P.S. PY 2023 IS 2023 PB Kemerovo State University