BREZINA, Ivan, ml. - DONOVALOVÁ, Alena. The State of the Glass Industry in Slovakia. In Desire. Design and Research in Business. International Scientific Conference. Desire. Design and Research in Business : Proceedings of the of the International Scientific Conference. - Bratislava : Vydavateľstvo EKONÓM, 2020. ISBN 978-80-225-4705-5, s. 6-17 online. VEGA 1/0543/18.