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Quan, Zhi; Li, Shanlong; Zhu, Feifei; Zhang, Limei; He, Jizheng; Wei, Wenxue; Fang, Yunting . (2017). Fates of 15N-labeled fertilizer in a black soil-maize system and the response to straw incorporation in Northeast China. Journal of Soils and Sediments, (), –. doi:10.1007/s11368-017-1857-3 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research