00706naa#a2200169#i#450# EN\\bibl\42003 20240519140802.7 2072-9502 20210125b2021####ek#y0engy0150####ca RU Balakirev Valentin Sergeevich: doctor of technical sciences, professor, honorary worker of higher professional education of Russian Federation Journal article Astrakhan Astrakhan State Technical University 2021 1 с. Journal article local Биографические и подобные исследования. Генеалогия. Геральдика. 92 Balakirev Valentin Sergeevich vestnik.astu.org