00521naa#a2200157#i#450# EN\\bibl\75944 20241212184357.4 2542-1840 20240314b2024####ek#y0engy0150####ca RU Calculating Costs of Engineering Obstacle Installations as Part of Engineering and Technical Protection Disciplines Journal article Kemerovo Kemerovo State University 2024 5 с. Journal article local Gavrishev Aleksey Andreevich zh-szf.ru