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. (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.