Nagy, Balázs, Ádám Ignéczi, Kovács-SzékelyIlona, Ruiz PereiraSebastián, Gábor Mihajlik, Péter Felkai, and László Mari. 2023. “The Challenges of Commercial Mountaineering on the Highest Volcanic Seven Summit, the Ojos Del Salado”. Hungarian Geographical Bulletin 72 (1), 23-40. https://doi.org/10.15201/hungeobull.72.1.2.