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Li, J.; Celiz, A. D.; Yang, J.; Yang, Q.; Wamala, I.; Whyte, W.; Seo, B. R.; Vasilyev, N. V.; Vlassak, J. J.; Suo, Z.; Mooney, D. J. . (2017). Tough adhesives for diverse wet surfaces. Science, 357(6349), 378–381. doi:10.1126/science.aah6362 

An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research