%0 Journal Article %A Verstegen, S.W. (Wybren) %T Charles J. Halperin, Ivan the Terrible. Free to Reward and Free to Punish %D 2020 %J Tijdschrift voor Geschiedenis, %V 133 %N 4 %P 746-748 %@ 2352-1163 %R https://doi.org/10.5117/TVGESCH2020.4.016.VERS %I Amsterdam University Press, %X %U https://www.aup-online.com/content/journals/10.5117/TVGESCH2020.4.016.VERS