BURKHARDT, T. et al. Optical path difference evaluation of laser-soldered optical components. Journal of the European Optical Society - Rapid publications, Europe, v. 10, dec. 2015. ISSN 1990-2573. Available at: <http://www.jeos.org/index.php/jeos_rp/article/view/15059>. Date accessed: 28 Apr. 2016. doi:577.