Country to country citation ratios

Pair-wise citation numbers of countries, based on citations originating from AR/RE/CP papers in 2017 (Scopus) to AR/CP/RE in 2013-2017. Self-citations are excluded. Ratio's of references are only counted for references to citations in the cited window (sum=100%). Fractional counting applied: proportionally assigns fractions to countries based on the number of authors affiliated with that country in each paper. Scopus dataset extracted 20181205