Research Research and Modelling in Civil Engineering 2017. -- 1. vyd. -- Koszalin: Koszalin University of Technology Publishing House, 2017. -- 156 s. -- ISBN : 978-83-7365-474-7. -- ISSN : 0239-7129. Katzer, Jacek. Cichocki, Krzysztof. Golaszewski, Jacek. Major, Izabela