PREFACE Authors G. Szász Citation data from Crossref and Scopus PDF How to Cite Szász, G. (1990) “PREFACE ”, Periodica Polytechnica Transportation Engineering, 18(1-2), p. More Citation Formats Periodica Polytechnica ACM ABNT Chicago Harvard IEEE Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 18 No. 1-2 (1990) Section Articles