“Evaluation of the Economic Efficiency of Maintenance and Repair of the Subsystems of Regional Radioelectronic Complex System”. 2013. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 54 (September): 160-70. https://doi.org/10.20535/RADAP.2013.54.160-170.