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Yang, Baolai; Zhang, Hanwei; Shi, Chen; Tao, Rumao; Su, Rongtao; Ma, Pengfei; Wang, Xiaolin; Zhou, Pu; Xu, Xiaojun; Lu, Qisheng . (2018). 3.05 kW monolithic fiber laser oscillator with simultaneous optimizations of stimulated Raman scattering and transverse mode instability. Journal of Optics, 20(2), 025802–. doi:10.1088/2040-8986/aa9ec0 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research