TY JOUR TI CHRISTIANIZATION OF THE KHAKASS PEOPLE IN THE FRONTIER THEORY CONTEXT KW Siberia KW Khakass-Minusinsk Region KW frontier KW religious frontier KW migration KW contact zone KW Khakass people KW Russian Orthodox Church KW Christianization KW cultural landscape KW church parishes JO Socio-economic and humanitarian magazine AU Asochakova, V.N. AU Artamonova, N.Y. PY 2026 IS 0 PB Krasnoyarsk State Agrarian University