ČEREŠŇÁK, Roman et al. Mapping rules for schema transformation : SQl to NoSQL and back. In Information and Digital Technologies 2021. international conference. Information and Digital Technologies 2021 : proceedings of the international conference, Žilina, 22.06.2021-24.06.2021. 1. vyd. - Danvers : Institute of Electrical and Electronics Engineers IEEE, 2021. ISBN 978-1-6654-3692-2, pp. 58-64. Available on: https://doi.org/10.1109/IDT52577.2021.9497629.