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Cortés, Fernando; Sarría, Imanol . (2015). Dynamic Analysis of Three-Layer Sandwich Beams with Thick Viscoelastic Damping Core for Finite Element Applications. Shock and Vibration, 2015(), 1–9. doi:10.1155/2015/736256 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research