[1] Univ Silesiaia Katowice, Inst Earth Sci, Katowice, Poland
[2] Yale Univ, Global Justice Program, New Haven, CT USA
[3] Wakayama Univ, Ctr Tourism Res, Wakayama, Japan
[4] AGH Univ Sci & Technol, Dept Integrated Geodesy & Cartog, Krakow, Poland
[5] Arizona State Univ, Sch Community Resources & Dev, Phoenix, AZ USA
[6] Univ Johannesburg, Sch Tourism & Hospitality, Johannesburg, South Africa