International Scientific Conference for Doctoral Students and Early-Stage Researches. 4th International Scientific Conference for Doctoral Students and Early-Stage Researches : Conference Proceedings 2018. 1st Edition. Eisenstadt : University of Applied Science Burgenland, 2018. 291 s. Available on Internet: <https://fhburgenland.contentdm.oclc.org/digital/collection/p16083coll2/id/749/rec/4> ISBN 978-3-9519937-0-6.