Opluštil, S. & Šimůnek, Z. & Zajíc, J. & Mencl, V. (2013)
Climatic and biotic changes around the Carboniferous/Permian boundary recorded in the continental basins of the Czech Republic. International Journal of Coal Geology, 119, 114–151
DOI: 10.1016/j.coal.2013.07.014