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Song-Yop Hahn, ; Hee-Suce Roh, ; Kyung Choi, ; Jin-Kyu Byun, . (2000). Optimal design procedure for a practical induction heating cooker. IEEE Transactions on Magnetics, 36(4), 1390–1393. doi:10.1109/20.877698 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research