21. Railway applications. Communication, signalling and processing systems. Software for railway control and protection systems. (26th February 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (132 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
22. Systems and software engineering. Systems and software assurance. Assurance in the life cycle Part 4, (7th June 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
23. Tracked Changes. Systems and software engineering. Systems and software assurance. Assurance in the life cycle Part 4, (12th October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (124 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗