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Meng, Qingfeng; Ma, Xianfa; Zhang, Juan; Yu, Zhitong . (2019). The long-term effects of cattle manure application to agricultural soils as a natural-based solution to combat salinization. CATENA, 175(), 193–202. doi:10.1016/j.catena.2018.12.022 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research