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Joannes Chliaoutakis; Fotini Socrataki; Christina Darviri; Nikos Gousgounis; Deanne Trakas. (1993). Knowledge and attitudes about AIDS of residents of greater Athens. , 37(1), 77–83. doi:10.1016/0277-9536(93)90320-4 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research