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Wolfgang G. Zeier; Irina P. Roof; Mark D. Smith; Hans-Conrad zur Loye. (2009).
Crystal growth of Ln3GaO6 (Ln = Nd, Sm, Eu and Gd): Structural and optical properties. , 11(11), 1965–1970.
doi:10.1016/j.solidstatesciences.2009.07.004
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research