Petrova, D.; Vlahova, B.; Lengerov, A.; Zlateva-Petkova, T. IMPROVEMENT OF CONSTRUCTIVE-TECHNOLOGICAL APPROACHES REDUCING INNOVATIVE OBSOLESCENCE OF INDUSTRIAL TECHNOLOGIES IN THE CONTEXT OF INDUSTRY 4.0. ETR 2023, 1, 180-186. https://doi.org/10.17770/etr2023vol1.7238.