PREFACE Authors B. Kleb Citation data from Crossref and Scopus PDF How to Cite Kleb, B. “PREFACE”, Periodica Polytechnica Civil Engineering, 32(3-4), pp. 97–98, 1988. More Citation Formats Periodica Polytechnica Numbered ACM ABNT Chicago Harvard IEEE Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 32 No. 3-4 (1988) Section Research Article