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Heather S. Zimbler-DeLorenzo; Anita I. Stone. (2011). Integration of field and captive studies for understanding the behavioral ecology of the squirrel monkey (<em>Saimiri</em> sp.). , 73(7), 607–622. doi:10.1002/ajp.20946 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research