DIVAI 2018: 12th international scientific conference on distance learning in applied informatics, conference proceedings, May 2-4, 2018, Štúrovo, Slovakia / editori Milan Turčáni, Zoltán Balogh, Michal Munk . Praha:  Wolters Kluwer ČR , 2018 . 529 s . ISBN 978-80-7598-059-5 .