Erratum: Pollack Periodica 15 (2) (2020) 106–117
The second author’s name and affiliation was not listed.
The correct form of the authors and affiliations is as follows:
Magdy ISMAIL1*, Hossam EL-SOKKARY2
1 Faculty of Engineering and Information Technology, University of Pécs, Boszorkány u. 2H-7624 Pécs, Hungary
2 Department of Structural Engineering, Ain Shams University, Cairo, Egypt