Environmental control for determining human impact and permanent visitor capacity in a potential show cave before tourist use
Calaforra, J.M., Fernández-Cortés, A., Sánchez-Martos, F., Gisbert, J., Pulido-Bosch, A.Том:
30
Мова:
english
Журнал:
Environmental Conservation
DOI:
10.1017/S0376892903000146
Date:
June, 2003
Файл:
PDF, 318 KB
english, 2003