David, Jaroslav, és Davidová GlogarováJana. „Czech Travelogues about Soviet Russia and the Soviet Union – a Neglected Source for Historical Geography”. Hungarian Geographical Bulletin 66, no. 4 (december 12, 2017): 295-306. Elérés november 8, 2025. https://ojs3.mtak.hu/index.php/hungeobull/article/view/687.