J. Kerres. (1999)Presentation, Membrane Technology in the Chemical and Automotive Industry: From Product Recovery to Fuel Cell Technology, 31.05. - 01.06.1999, Geesthacht, Germany.
J. Kerres. (2010)Vortrag, Invited Oral Presentation, 3rd International Conference on Functional Materials and Devices (ICFMD-2010), 14.06.-17.06.2010, Kuala Terengganu, Malaysia.
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. (2011)Vortrag, Advances in Materials for Proton Exchange Membrane Fuel Cell Systems 2011, Asilomar Conference Grounds, 20.02.-23.02.2011, Pacific Grove, California USA.
J. Kerres. (2000)Presentation, Jahrestagung 2000 der Fachgruppe „Angewandte Elektrochemie“ der Gesellschaft Deutscher Chemiker, 27.09. - 29.09.2000, Ulm, Germany.
J. Kerres, and F. Schönberger. (2007)Vortrag, An International Workshop on Degradation Issues in Fuel Cells, 19.09.-21.09.2007, Hersonessos, Kreta, Greece.