J. Kerres. (2008)Presentation, Conference „Progress in MEA components for medium and high temperature polymer electrolyte fuel cells”, 21.09. - 24.09.2008, La Grande Motte, France.
J. Kerres. (2005)Presentation, 15th International Symposium on Fine Chemistry and Functional Polymers (FCFP-XV) & IUPAC 1st International Symposium on Novel Materials and Synthesis (NMS-I), 17.10. - 20.10.2005, Shanghai, China.
J. Kerres. (2000)Presentation, Jahrestagung 2000 der Fachgruppe „Angewandte Elektrochemie“ der Gesellschaft Deutscher Chemiker, 27.09. - 29.09.2000, Ulm, Germany.