Performability Modeling with UltraSAN. - Joseph A. Couvillion; Roberto S. Freire; Ron Johnson; W. Douglas Obal II; Muhammad A. Qureshi; Manish Rai; William H. Sanders; Janet E. Tvedt (PNPM, 1991)

Performability Modeling with UltraSAN. - Joseph A. Couvillion; Roberto S. Freire; Ron Johnson; W. Douglas Obal II; Muhammad A. Qureshi; Manish Rai; William H. Sanders; Janet E. Tvedt (IEEE Softw., 1991)

Dependability Evaluation Using UltraSAN. - William H. Sanders; W. Douglas Obal II (FTCS, 1993)

An Environment for Importance Sampling Based on Stochastic Activity Networks. - W. Douglas Obal II; William H. Sanders (SRDS, 1994)

Importance Sampling Simulation in UltraSAN. - W. Douglas Obal II; William H. Sanders (Simul., 1994)

UltraSAN version 3 overview. - Daniel D. Deavours; W. Douglas Obal II; Muhammad A. Qureshi; William H. Sanders; Aad P. A. van Moorsel (PNPM, 1995)

The UltraSAN Modeling Environment. - William H. Sanders; W. Douglas Obal II; Muhammad A. Qureshi; F. K. Widjanarko (Perform. Evaluation, 1995)

State-Space Support for Path-Based Reward Variables. - W. Douglas Obal II; William H. Sanders (Perform. Evaluation, 1999)

Measure-adaptive state-space construction. - W. Douglas Obal II; William H. Sanders (Perform. Evaluation, 2001)

Detecting and Exploiting Symmetry in Discrete-state Markov Models. - W. Douglas Obal II; Michael G. McQuinn; William H. Sanders (PRDC, 2006)