MATEC Web of Conferences [elektronický zdroj] : 14th International Conference Modern Technologies in Manufacturing (MTeM 2019), 09. - 12. October 2019, Cluj-Napoca, Romania / editori N. Balc, D. Leordean . London :  EDP Sciences , 2019 . ISBN 978-2-7598-9083-5
https://doi.org/10.1051/matecconf/201929900001 .