TY - JOUR A1 - Funke, Harald A1 - Börner, Sebastian A1 - Falk, F. A1 - Hendrick, P. T1 - Control system modifications and their effects on the operation of a hydrogen-fueled Auxiliary Power Unit JF - XX international symposium on air breathing engines 2011 : ISABE 2011, Gothenburg, Sweden, 12-16 September, 2011. Vol. 2. Y1 - 2011 SN - 9781618391803 N1 - 20th International Symposium on Air Breathing Engines 2011 : (ISABE 2011) : Gothenburg, Sweden, 12-16 September, 2011. SP - 929 EP - 938 PB - American Institute of Aeronautics and Astronautics CY - Reston, VA ER -