ČERVEŇANSKÝ, Jaroslav - MASÁROVÁ, Renáta. Divergence Preserving Functions. In Intelligent Computational Methods and Applied Mathematics. ICMAM 2008 : European Workshop. An International Forum for Researchers, Teachers and Students. Poland, Cracow, March 28-31, 2008. Bielsko-Biala : University of Bielsko-Biala, 2008, s.1-6. ISBN 978-83-60714-29-4. M*ČER