- Quantification of Backfill Effects on Crack Propagation Pipeline,
Z. Zhuang and P.E. O'Donoghue
Paper 5.5 from CCP: 42, ISBN 0-948749-44-X (1996)
- Design of Mechanical Crack Arrestors,
P.E. O'Donoghue and Z. Zhuang
Paper 8.1 from CCP: 42, ISBN 0-948749-44-X (1996)