1. Works

2. References

Eufrosina Dvoichenko-Markov (1901–1980, Moscow, Russia) was a Russian-American history and literary scholar identified by NSA as agent Masha who worked for the New York NKGB Rezidentura from 1943 to 1945. Her son, Sgt. Demetrius Dvoichenko-Markov of the United States Army, is also identified by Venona papers as a Soviet agent, but spent the rest of his life as an academician in the USA. Masha provided Soviet intelligence with information on Romanians, Carpatho-Russians and other exile groups in the United States. Masha also provided information on United States Department of State personnel with whom she had contact.

Works

• Eufrosina Dvoichenko-Markov, Jefferson and the Russian Decembrists, American Slavic and East European Review, Vol. 9, No. 3. (Oct., 1950), pp. 162–168. [https://www.jstor.org/stable/2491645 JSTOR link]
• Eufrosina Dvoichenko-Markov, The Pulkovo Observatory and Some American Astronomers of the Mid-19th Century, Isis, Vol. 43, No. 3. (Sep., 1952), pp. 243–246. [https://www.jstor.org/stable/227465 JSTOR link]

References

• John Earl Haynes and Harvey Klehr, Venona: Decoding Soviet Espionage in America, Yale University Press (1999), pg. 259, 347, 449. {{ISBN|0-300-07771-8}}.
• John Earl Haynes, "Cover Name, Cryptonym, CPUSA Party Name, Pseudonym, and Real Name Index. A Research Historian’s Working Reference" (revised February 2007), on the author's web site.

• Byzantine–Venetian Treaty of 1219
• Byzantine–Venetian War (1296–1302)
• Byzantinische Zeitschrift
• Byzantinist
• Byzantinists
• Byzantinology
• Byzantism
• Byzantium after byzantium
• Byzantium (album)
• Byzantium (band)
• Byzantium (color)
• Byzantium (Deep Blue Something)
• Byzantium (disambiguation)
• Byzantium from the fall of Irene to the ascension of Basil I
• Byzantium's Crown
• Byzantium's Jews
• Byzantium under the Amorian Dynasty
• Byzantium under the Amorian dynasty
• Byzantium under the angeloi
• Byzantium under the heraclians
• Byzantium under the isaurians
• Byzantium under the Justinian Dynasty
• Byzantium under the Komnenoi
• Byzantium under the komnenoi
• Byzantium under the Leonid Dynasty