Audsley, Neil C.; Burns, Alan; Davis, Robert I.; Tindell, Ken W.; Wellings, Andy J. (1995-03-01). "Fixed priority pre-emptive scheduling: An historical perspective". Real-Time Systems. 8 (2): 173–198. doi:10.1007/BF01094342. ISSN 1573-1383. https://link.springer.com/article/10.1007/BF01094342