ZIRYANOV, Aleksander I.; KOROLEV, Andriej Y.; MISHLAVTCEVA, Swietlana E.; SAFARIAN, Azat A. Approaches to active tourism in the Urals and in Perm Krai. Turyzm/Tourism, [S. l.], v. 26, n. 1, p. 79–84, 2016. DOI: 10.1515/tour-2016-0007. Disponível em: https://czasopisma.uni.lodz.pl/tourism/article/view/5337. Acesso em: 23 jul. 2024.