1. Anderson, J. E., Garrard, W. L. and Starr, P. J. (1980) “A Technique for Reliability Allocation for Minimum Life Cycle Cost in Transit Systems”. Contract No. DOT-UT-90012.
2. Watt, C.W., Ed (1978) “Automated Guideway Transit Service Availability Workshop”. Report No. UMTA-MA-06-0048-77-4.