KUCHTA, Martin - STANKOVÁ, Monika. Interest and Motivation for the Paid Online Media Services Within a Defined Target Group. In Marketing Identity : New Changes, New Challenges. - Trnava : Faculty of Mass Media Communication, University of SS. Cyril and Methodius in Trnava, 2021. ISBN 978-80-572-0220-2. ISSN 1339-5726, pp. 407-416 online. VEGA 1/0657/19.