This zip file contains six different tab files. Each of these files has the following six columns
1. Date and hour the paper was downloaded through Sci-Hub
2. the DOI record of the paper
3. Internet Provider Code
4. Country
5. City
6. Latitude, Longitude
As the last column has both Latitude and Longitude coordinates, these might be easily separated by using the function "separate()" with the aid of the tidyr R package (Wickham & Henry, 2019). Although this step is not necessary for our purposes, the user can see an R script that describes our pre-processing of Sci-Hub data.
**REFERENCE**
Wickham, H. and Henry, L. (2019). tidyr: Easily Tidy Data with 'spread()' and 'gather()' Functions. R package version 0.8.3. https://CRAN.R-project.org/package=tidyr