In this paper we present digitized works of Dimitrije Danić (1862-1932), first Serbian doctor of science in the area of mathematics and a prominent professor of the Military Academy in Belgrade. Digital copies of his monographs and text-books are deposited in the Virtual Library of the faculty of Mathematics in Belgrade. These works were digitized in the frame of the long-lasting digitization project Digitization of scientific and cultural heritage, run by the Mathematical institute in Belgrade and the Faculty of Mathematics in Belgrade.