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Eric Braakman; Jan G.J. van de Winkel; Brigitte A. van Krimpen; Margriet Jansze; Reinder L.H. Bolhuis. (1992). CD16 on human γδ T lymphocytes: Expression, function, and specificity for mouse IgG isotypes. , 143(1), 97–107. doi:10.1016/0008-8749(92)90008-d 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research