HOFMANN, M. ; JANZ, S. ; SCHMIDT, C. ; KAMBOR, S. ; SUWITO, D. ; KOHN, N. ; RENTSCH, J. ; PREU, R. ; GLUNZ, S.W.: 'Recent developments in rear-surface passivation at Fraunhofer ISE', SOLAR ENERGY MATERIALS AND SOLAR CELLS., ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM., NL, vol. 93, no. 6-7, 1 June 2009 (2009-06-01), NL, pages 1074 - 1078, XP026093572, ISSN: 0927-0248, DOI: 10.1016/j.solmat.2008.11.056