 | Bulgaria (category CS1 German-language sources (de)) – objectives, experiments and instrumentation". Comptes Rendus de l'Académie Bulgare des Sciences. 47 (25): 485–496. ISSN 1310-1331. Archived from the... 243 KB (20,003 words) - 23:46, 17 April 2024 |
 | November 10, 1936, p. 5 Popescu (2012), pp. 31–32 (in French) "La minorité bulgare en Roumanie est loyale", in Glasul Minorităților, Issues 1–2/1937, p. 18... 85 KB (11,059 words) - 18:29, 14 February 2024 |