Irsen, S. Electron Microscopy and Analytics, Center of Advanced European Studies and Research (caesar), Max Planck Society;
http://www3.interscience.wiley.com/journal/122271047/abstract (Any fulltext)
Irsen, S., Lütke Notarp, D., Kuehnlein, H. H., & Verbunt, H. (2009). Accelerated ageing tests of solar cells. Imaging in Microscopy, 11(1), 42-43.