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Zhang, Baobao; Mildenberger, Matto; Howe, Peter D.; Marlon, Jennifer; Rosenthal, Seth A.; Leiserowitz, Anthony . (2018).
Quota sampling using Facebook advertisements. Political Science Research and Methods, (), 1–7.
doi:10.1017/psrm.2018.49
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research
