00572naa#a2200169#i#450# EN\\bibl\44088 20241126002117.2 2073-1574 20210518b2021####ek#y0engy0150####ca RU Electrotechnical complex for distance learning Journal article Astrakhan Astrakhan State Technical University 2021 10 с. Journal article local Инженерное дело. Техника в целом. Транспорт. 62 Bykova Valentina Prokhorovna vestnik.astu.org