RAKOVSKÁ, Júlia. Impact of the Covid-19 Pandemic on the Process of Industry 4.0 Implementation in Engineering Enterprises in Slovakia. In Changes in Production Management and Logistics during the Coronavirus Crisis : Reviewed Collection of Scientific Papers. - Kraków : Towarzystwo Słowaków w Polsce, 2021. ISBN 978-83-8111-249-9, s. 85-95 CD-ROM. VEGA 1/0375/20.