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Quintilio Piattoni; Enrico Quagliarini; Stefano Lenci. (2011). Experimental analysis and modelling of the mechanical behaviour of earthen bricks. , 25(4), 2067–2075. doi:10.1016/j.conbuildmat.2010.11.039 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research