DisCo 2018: Overcoming the Challenges and Barriers in Open Education. International Conference. DisCo 2018: Overcoming the Challenges and Barriers in Open Education : Proceedings of the 13th International Conference, June 25 - 26, 2018 (Prague, Czech Republic). Reviewers: Dele Braimoh, Camacho Martí ... [et al.]. 1st Edition. Prague : Centre for Higher Education Studies, 2018. 445 s. online. ISBN 978-80-86302-83-6.