Stokkermans, Karel; Jรถnsson, Mikael (20 October 2015). "Games of the VIII. Olympiad". Archived from the original on 11 July 2022. Retrieved 18 February 2019.
Stokkermans, Karel; Jรถnsson, Mikael (20 October 2015). "Games of the IX. Olympiad". RSSSF. Archived from the original on 15 June 2023. Retrieved 18 February 2019.
Stokkermans, Karel; Jรถnsson, Mikael (20 October 2015). "Games of the VIII. Olympiad". Archived from the original on 11 July 2022. Retrieved 18 February 2019.
Stokkermans, Karel; Jรถnsson, Mikael (20 October 2015). "Games of the IX. Olympiad". RSSSF. Archived from the original on 15 June 2023. Retrieved 18 February 2019.