Letter from the Managing Board of the Mathematical Institute to the Academy of Natural Sciences of the Serbian Academy of Sciences regarding the election of Anton Bilimović as its president . Belgrade, May 16, 1946 (1 page).
Draft Letter from Anton Bilimović, Director of the Mathematical Institute, to the Academy of Natural Sciences of the Serbian Academy of Sciences regarding the foundation of the Mathematical Institute (1 page)
Draft Letter from Anton Bilimović, Director of the Mathematical Institute, to the Academy of Natural Sciences of the Serbian Academy of Sciences regarding the first three sessions of the Scientific Committee of the Mathematical Institute (6 pages).
Draft Letter from Anton Bilimović, Director of the Mathematical Institute, to the Academy of Natural Sciences of the Serbian Academy of Sciences regarding the translation of scientific papers and publication of mathematics journals (1 page).