Geometrical and mechanical characteristics of deformed balance spring obtained by simulation study. - Branislav Popkonstantinovic; Ratko Obradovic; Marija Obradovic; Zorana V. Jeli; Misa Stojicevic (Simul., 2016)

The Eclipses Abacus, the mechanical predictor of the solar and lunar eclipses. - Branislav Popkonstantinovic; Ljubomir Miladinovic; Ratko Obradovic; Zorana V. Jeli; Misa Stojicevic (Simul., 2019)