Differences of E-Learning Systems With the Focus on Moodle and Blackboard Systems. - Kresimir Buntak; Maja Mutavdzija; Matija Kovacic (Int. J. E Serv. Mob. Appl., 2021)

Ethnic distribution, effective power and conflict. - Matija Kovacic; Claudio Zoli (Soc. Choice Welf., 2021)