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Gursoy, Dogan; Chi, Christina G. . (2020). Effects of COVID-19 pandemic on hospitality industry: review of the current situations and a research agenda. Journal of Hospitality Marketing & Management, 29(5), 527–529. doi:10.1080/19368623.2020.1788231 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research