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Lars Massüger; Christian Baerlocher; Lynne B. McCusker; Martijn A. Zwijnenburg. (2007). Synthesis and structure analysis of the layer silicate DLM-2. , 105(1-2), 75–81. doi:10.1016/j.micromeso.2007.05.021 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research