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Konicek, Petr; Soucek, Kamil; Stas, Lubomir; Singh, Rajendra . (2013). Long-hole destress blasting for rockburst control during deep underground coal mining. International Journal of Rock Mechanics and Mining Sciences, 61(), 141–153. doi:10.1016/j.ijrmms.2013.02.001 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research