PREFACE Authors Károly Molnár Citation data from Crossref and Scopus PDF How to Cite Molnár, K. “PREFACE ”, Periodica Polytechnica Mechanical Engineering, 38(2-3), pp. 65–67, 1994. More Citation Formats Periodica Polytechnica Numbered ACM ABNT Chicago Harvard IEEE Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 38 No. 2-3 (1994) Section Articles