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Boye, Robert R.; Goeke, Ronald S.; Hunt, Jeffery P.; Ison, Aaron M.; Jared, Bradley H.; Pillars, Jamin R.; Saavedra, Michael P.; Sweatt, William C.; Yelton, W. G.; Winrow, Edward G.; Wolfley, Steve L.; Johnson, R. Barry; Mahajan, Virendra N.; Thibault, Simon . (2013). SPIE Proceedings [SPIE SPIE Optical Engineering + Applications - San Diego, California, United States (Sunday 25 August 2013)] Current Developments in Lens Design and Optical Engineering XIV - Design of wearable binoculars with on-demand zoom. , 8841(), 88410H–. doi:10.1117/12.2024619 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research