S. Zwick, C. Schaub, T. Haist, and W. Osten. Optics Express, (2010)11 cites: https://scholar.google.com/scholar?cites=14873270305070020601&as_sdt=2005&sciodt=0,5&hl=en.
S. Zwick, T. Haist, M. Warber, and W. Osten. Applied optics, (2010)73 cites: https://scholar.google.com/scholar?cites=11976529137718615021&as_sdt=2005&sciodt=0,5&hl=en.