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 [Internet]. 2023 Jun. 13 [cited 2024 Jun. 30];1:180-6. Available from: https://journals.ru.lv/index.php/ETR/article/view/7238