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Stepuk, Alexander; Mohn, Dirk; Grass, Robert N.; Zehnder, Matthias; Krämer, Karl W.; Pellé, Fabienne; Ferrier, Alban; Stark, Wendelin J. (2012). Use of NIR light and upconversion phosphors in light-curable polymers. Dental materials, 28(3), pp. 304-311. Amsterdam: Elsevier 10.1016/j.dental.2011.11.018
