https://www.openfest.org/2015/en/2015/10/26/why-did-we-accept-two-talks-by-bozhidar-bozhanov-in-the-program-of-openfest-2015/ OpenFest is the only conference of its kind in Bulgaria, dedicated to open culture, free and open-source software, the free exchange of knowledge - a festival of the open culture. Thu, 29 Oct 2015 08:59:41 +0000 hourly 1 https://wordpress.org/?v=5.2.20