World Multidisciplinary Earth Sciences Symposium (WMESS 2018) : proceedings. 3–7 September 2018, Prague, Czech Republic. 1. vyd. Bristol : IOP Publishing, 2019. IOP Conference Series: Earth and Environmental Science, volume 221. Available on Internet: <https://iopscience.iop.org/issue/1755-1315/221/1> ISSN 1755-1307.