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Alzohairi, Mohammad; Bouaziz, Moncef; Boudabbous, Youssef; Sharary, Ahmad . (2019). Finite Orders Which Are Reconstructible up to Duality by Their Comparability Graphs. Bulletin of the Malaysian Mathematical Sciences Society, (), –. doi:10.1007/s40840-019-00805-w 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research