Tourist Carrying Capacity in Caves: Main Trends and New Methods in Brazil

by Lobo, Heros Augusto Santos, Perinotto, José Alexandre de Jesus, Boggiani, Paulo César
Source: 1. 6th congress International show caves association : proceedings 1. Liptovský Mikuláš : State Nature Conservancy of the Slovak Republic, Slovak Caves Administration, 2011 1. S. 108-115 1. 9788089310593