1
2
Published: 1961
Superior document: Osvoboždenie Bolgarii ot tureckogo iga dokumenty v trech tomach 1
3
4
Published: 1992
Superior document: Balkanskie issledovanija 14
5
Published: 1969
6
Published: 1940
Superior document: Istočnikovedenie istorii SSSR kurs istočnikovedenija istorii SSSR 2