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A. A. Antipova; T. N. Yudanova; M. A. Papkov; E. N. Milyukina; L. S. Gal’braikh. (2010). Immobilization of protease composites with polyethylene oxide on fibre substrates. , 42(2), 99–102. doi:10.1007/s10692-010-9231-x 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research