[1]
M. Różycka and P. Migoń, “Visitors’ background as a factor in geosite evaluation. The case of Cenozoic volcanic sites in the Pogórze Kaczawskie region, SW Poland”,
geotour
, no. 38-39, p. 3, May 2017, doi:
10.7494/geotour.2014.38-39.3
.