Mutual aid ↓save

Edward Hughes; D.G. McFetridge. (1985). A theoretical analysis of incremental investment incentives with an application to the case of industrial R & D. , 27(3), 311–329. doi:10.1016/0047-2727(85)90054-4 

An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research