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Cho, Yoon‐Gyo; Hwang, Chihyun; Cheong, Do Sol; Kim, Young‐Soo; Song, Hyun‐Kon . (2019). Gel Polymer Electrolytes: Gel/Solid Polymer Electrolytes Characterized by In Situ Gelation or Polymerization for Electrochemical Energy Systems (Adv. Mater. 20/2019). Advanced Materials, 31(20), 1970144–. doi:10.1002/adma.201970144 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research