1. Banks, A., Briggs, E., Borgendale, K., Gupta, R., 2019. MQTT Version 5.0. OASIS Standard.
2. Bischoff, J. (Ed.), 2015. Erschlieen der Potenziale der Anwendung von, In-dustrie 4.0 im Mittelstand (engl. Unlocking the potential of the application of ‘Industry 4.0’ in SMEs). agiplan GmbH.
3. Bührig-Polaczek, A., Michaeli, W., Spur, G., 2013. Handbuch Urformen (engl. Handbook primary forming). Hanser, Carl GmbH + Co.
4. Dučić, N., Jovičić, A., Manasijević, S., Radiša, R., Ćojbašić, Ž., Savković, B., 2020. Application of machine learning in the control of metal melting production process 10, 6048.
5. European Foundry Association, American Foundry Society, 2021. Census of world casting production - total casting tons dip in 2019. Modern Casting, 28–30.