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Reixach, R.; Del Rey, R.; Alba, J.; Arbat, G.; Espinach, F.X.; Mutjé, P. . (2015). Acoustic properties of agroforestry waste orange pruning fibers reinforced polypropylene composites as an alternative to laminated gypsum boards. Construction and Building Materials, 77(), 124–129. doi:10.1016/j.conbuildmat.2014.12.041 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research