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Zhang, Weifeng; Wang, Guanghui . (2015). Nonlinear and nonlocal effects on dispersion properties of coupled surface plasmon polaritons in linear/wire-medium/nonlinear dielectric structures. Applied Physics A, 120(1), 17–24. doi:10.1007/s00339-015-9156-6 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research