INTRODUCTORY SPEECH Authors István Zobory Citation data from Crossref and Scopus PDF How to Cite Zobory, I. (1993) “INTRODUCTORY SPEECH”, Periodica Polytechnica Transportation Engineering, 21(1), pp. 3–5. More Citation Formats Periodica Polytechnica ACM ABNT Chicago Harvard IEEE Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 21 No. 1 (1993) Section Articles