27th 27th Concrete Days 2020 : selected peer-reviewed full text papers from 27th International Conference Concrete Days. December 2nd, 2020, Prague, Czech Republic /. -- 1. vyd. -- Baech : Trans Tech Publications, 2021. -- 220 s. -- (Solid State Phenomena, vol. 322). -- ISBN : 978-3-0357-1821-8. -- 978-3-0357-3821-6 (eBook). -- ISSN : 1012-0394. -- 1662-9779 (online). -- 10.4028/www.scientific.net/SSP.322. Nenadálová, Šárka. Johová, Petra