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Makhsiyan, Mathilde; Bouchon, Patrick; Jaeck, Julien; Pelouard, Jean-Luc; Haïdar, Riad . (2015). Shaping the spatial and spectral emissivity at the diffraction limit. Applied Physics Letters, 107(25), 251103–. doi:10.1063/1.4937453 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research