sci
hub

to open science
Paetzel, Rainer. (2002). [Laser Institute of America ICALEO® 2002: 21st International Congress on Laser Materials Processing and Laser Microfabrication - Scottsdale, Arizona, USA (October 14–17, 2002)] International Congress on Applications of Lasers & Electro-Optics - Comparison excimer laser – Solid state laser. , (), 163015–. doi:10.2351/1.5066151 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research