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Beyreuther, Elke, et al. “Photoconduction of Polar and Nonpolar Cuts of Undoped Sr0.61B.39Nb2O6 Single Crystals.”10.3390/cryst11070780__Crystals, vol. 11, no. 7, 780, MDPI AG, 2021, doi:10.3390/cryst11070780.
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Schneider, Jennifer. “Teaching and Learning Materials.” Fostering Digitisation and Industry 4.0: Education – Vocation - Industry – Future. New Opportunities and Challenges for European VET. Insights in the DigI-VET Project, edited by Marc  Beutner et al., 2021, pp. 150–65.
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