Christov C, Stoytcheva N. RELIABILITY AND SAFETY RESEARCH OF HOT STANDBY MICROCOMPUTER SIGNALLING SYSTEMS. Period. Polytech. Transp. Eng. [Internet]. 1999 Jan. 1 [cited 2025 Mar. 13];27(1-2):17-28. Available from: https://pp.bme.hu/tr/article/view/1974