Due to advancements of information technologies and ubiquity of mobile devices, various applications and presentations are continuously developing in order to keep an individual properly informed about a wide diversity of topics. Applications of a specific type are dedicated to the presentation of historical heritage in order to better inform and immerse users into historical happenings. In this context, war diaries are viewed as precious documents since provide authentic information by persons directly participating in certain events. Besides historical facts, diaries offer personal interpretation of events and circumstances within which they have happen. Therefore, preservation of war diaries and their presentation to a wide audience is an important task in digitization of national historical heritage. This paper presents such applications for a multimedia presentation over mobile devices of two First World War diaries by the general Dušan Dodić and the soldier Stojan J.Jeftić. The applications are based on the corresponding books and related exhibitions at the Regional Museum Jagodina and the Homeland Museum of Knjаževаc authored by Duško Grbović and Milena Milišević Micić, respectively.

The report aims to show the process of all the work on building projects designed to meet societal challenges with new approaches to history, culture, the need for digital corpora of terminology and its functioning in foreign languages in non-Slavic countries. Regarding the project "Southern and Eastern Slavs: Diversity and Interaction of Written Cultures 11th-20th Century" are presented several stages of work: structuring the virtual museum, research of cultural heritage collections and analysis of sources, website design (https://sesdiva.eu/) and the search engine. The project "Scripta Bulgarica: Digital Library for Medieval Bulgarian Literature" gained popularity and applicability in education. It contains 506 terms in Paleoslavistics with an attached dictionary (in several Western European and Slavic languages: English, German, Russian and Bulgarian, as well as their respective terms in Old Bulgarian, Greek and Latin). The benefits of the usage the project and its perception among different users (students, teachers, museum specialists, journalists, etc.) are undoubted. The effectiveness of the projects depends on their sustainability and their continuation over time.

The paper presents the implementation and results of the project "Digitization of museum material of the Museum of Herzegovina Trebinje", started in 2019, with the aim to show all the possibilities that digitization provides and relates to the manipulation, use, distribution, and especially storage of material for the future. Given the large amount of material that makes up the cultural, historical and scientific heritage, and kept in the Museum, it was necessary to approach the process of protection of the original, and with the help of digital photocopies to improve the availability of material. Digitized objects are mostly three-dimensional objects for the digitization of which a 3D scanner with accompanying equipment and software was used. Based on the results of the research, it's assumed that access to and use of the Museum's collection will increase, valuable specimens will be protected and easier use of frequently used material will be enabled.

In this paper we present digitized works of Dragomir Simeunović (1930-2021), a former professor of mathematics at Belgrade University. We consider that his works should be interesting to the wider audience for two reasons. The first one is that he initially finished astronomy and was one of the last students of the famous Serbian astronomer and applied mathematician Milutin Milanković. Secondly, he also graduated in mathematics and after that his scientific work was completely devoted to geometry of polynomials, a discipline founded in Serbia by Mihailo Petrović Alas, the father of modern mathematics in Serbia. Digital copies of Simeunović’s works are deposited in the Virtual Library of the Faculty of mathematics, elibrary.matf.bg.ac.rs.

In this paper the procedure of digitization of literary work of Miodrag M. Pešić, famous for translating Russian literature, is described. Pešić was the first to translate Yesenin into Serbian language. He also translated Pushkin, Chekhov, Blok, Pasternak, Turgenev, Bryusov, Lyeskov, Petrov and other numerous Russian authors. Besides translating he was writing reviews, critics, articles, novelized biographies, essays. Printed copies of these books are kept in local history department of the Public Library in Kraljevo. Their digital copies are to be found on kraljevcani.rs website. He worked as a teacher of Serbian language as well, but the longest period as a librarian. The Library in Kraljevo owns a significant fund of manuscript legacy of this author, librarian, translator.

In this paper, we will present the digitized scientific works of Jovan Lazović, a respectable professor of the University of Belgrade. Professor Jovan Lazović and Jovan Simovljević continued the work of the Belgrade school for celestial mechanics who was started by our outstanding scientist Milutin Milanković. With his research papers, Lazović yielded significant contribution to celestial mechanics, especially in calculating their mutual proximities.