Senn, Alfred Erich (septembrie 1962). „The Formation of the Lithuanian Foreign Office, 1918–1921”. Slavic Review. 3 (21): 500–507. doi:10.2307/3000451. ISSN0037-6779.
Senn, Alfred Erich (septembrie 1962). „The Formation of the Lithuanian Foreign Office, 1918–1921”. Slavic Review. 3 (21): 500–507. doi:10.2307/3000451. ISSN0037-6779.