EP702376-A1  CHEMICAL ABSTRACTS, vol. 65, no. 1, 04071966 Columbus, Ohio, US; C.BERGER &AL "application of inorganic membranes. . ." column 8326;  DATABASE WPI Section Ch, Week 8301 Derwent Publications Ltd., London, GB; Class E32, AN 76-80213X & JP-B-57 057 558 ( KUREHA KAGAKU KOGYO), 04121982;  DATABASE WPI Section Ch, Week 9541 Derwent Publications Ltd., London, GB; Class E32, AN 95-317300 & JP-A-07 215 709 ( NIPPON PAINT CO LTD), 15081995;  HYDROCARBON FUEL CELL TECHNOLOGY, 1965 USA, pages 485-494;  JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 115, no. 3, March 1968 USA, pages 230-233, C.BERGER & AL "zirconium phosphate membranes. . .";  SOLID STATE IONICS, JULY 1982, NETHERLANDS, vol. 6, no. 4, ISSN 0167-2738, pages 337-339, NAKAMURA O ET AL "Three-electrode solid-state fuel cell for evaluating working electrodes";  CHEMICAL ABSTRACTS, vol. 65, no. 1, 4 July 1966 Columbus, Ohio, US; C.BERGER &AL 'application of inorganic membranes...' column 8326; & HYDROCARBON FUEL CELL TECHNOLOGY, 1965 USA, pages 485-494,;  DATABASE WPI Section Ch, Week 8301 Derwent Publications Ltd., London, GB; Class E32, AN 76-80213X & JP-B-57 057 558 ( KUREHA KAGAKU KOGYO) , 4 December 1982;  DATABASE WPI Section Ch, Week 9541 Derwent Publications Ltd., London, GB; Class E32, AN 95-317300 & JP-A-07 215 709 ( NIPPON PAINT CO LTD) , 15 August 1995;  JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 115, no. 3, March 1968 USA, pages 230-233, C.BERGER & AL 'zirconium phosphate membranes...';  SOLID STATE IONICS, JULY 1982, NETHERLANDS, vol. 6, no. 4, ISSN 0167-2738, pages 337-339, NAKAMURA O ET AL 'Three-electrode solid-state fuel cell for evaluating working electrodes';  JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 115, no. 3, March 1968 USA, pages 230-233, C.BERGER&AL 'zirconium phosphate membranes...';  CHEMICAL ABSTRACTS, vol. 65, no. 1, 4 July 1966 Columbus, Ohio, US; C.BERGER&AL 'application of inorganic membranes...' column 8326;&HYDROCARBON FUEL CELL TECHNOLOGY, 1965 USA, pages 485-494,;  DATABASE WPI Section Ch, Week 9541 Derwent Publications Ltd., London, GB; Class E32, AN 95-317300&JP-A-07 215 709 ( NIPPON PAINT CO LTD) , 15 August 1995;  DATABASE WPI Section Ch, Week 8301 Derwent Publications Ltd., London, GB; Class E32, AN 76-80213X&JP-B-57 057 558 ( KUREHA KAGAKU KOGYO) , 4 December 1982