http://library.fes.de/pdf-files/bueros/wien/19110-20220517.pdf
https://towardsdatascience.com/create-dumbbell-plots-to-visualize-group-differences-in-r-3536b7d0a19a
https://www.politico.eu/article/former-slovak-pm-allies-charged-with-organized-crime/?utm_source=POLITICO.EU&utm_campaign=5fdcf56b04-EMAIL_CAMPAIGN_2022_04_21_04_27&utm_medium=email&utm_term=0_10959edeb5-5fdcf56b04-190380769
https://www.v-dem.net/files/25/DR%202021.pdf