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Sjannie Lefevre; Do Thi Thanh Huong; Nguyen Thi Kim Ha; Tobias Wang; Nguyen Thanh Phuong; Mark Bayley. (2011). A telemetry study of swimming depth and oxygen level in a Pangasius pond in the Mekong Delta. , 315(3-4), 0–413. doi:10.1016/j.aquaculture.2011.02.030 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research