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Wenzel H, Häusler K, Blume G, Fricke J, Spreemann M, Zorn M, Erbert G.Wenzel H, et al. Among authors: erbert g.Opt Lett. 2009 Jun 1;34(11):1627-9. doi: 10.1364/ol.34.001627.Opt Lett. 2009.PMID: 19488129
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Wenzel H, Schwertfeger S, Klehr A, Jedrzejczyk D, Hoffmann T, Erbert G.Wenzel H, et al. Among authors: erbert g.Opt Lett. 2012 Jun 1;37(11):1826-8. doi: 10.1364/OL.37.001826.Opt Lett. 2012.PMID: 22660042