EXPRES EXPRES 2017 : proceedings of the 9th International Symposium on Exploitation of Renewable Energy Sources and Efficiency. Subotica, Serbia, March 30 - April 01, 2017 [elektronický zdroj]. -- 1. vyd. -- Subotica : Inženjersko-tehničko udruženje vojvođanskih Mađara, 2017. -- CD-ROM, 114 s. -- ISBN : 978-86-919769-1-0.