sci
hub

to open science
Thomas Bernhart; Robert Haas; George Mailath; George Watzek. (1998). A minimally invasive second-stage procedure for single-tooth implants. , 79(2), 217–219. doi:10.1016/s0022-3913(98)70218-5 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research