Mohammad Al-Rousan LeRoy Bearnson James K. Archibald The Two-Processor Reliability of Hierarchical Large-Scale Ring-Based Networks. 63-71 1996 HICSS (1) http://computer.org/proceedings/hicss/7324/73240063abs.htm db/conf/hicss/hicss1996-1.html#Al-RousanBA96