PROFESSOR ISTVÁN RUSZNÁK Citation data from Crossref and Scopus PDF How to Cite “PROFESSOR ISTVÁN RUSZNÁK ” Periodica Polytechnica Chemical Engineering, 37(1-2), pp. 3–5, 1993. More Citation Formats Periodica Polytechnica Numbered ACM Chicago Harvard IEEE Vancouver Issue Vol. 37 No. 1-2 (1993) Section Articles