1. ALA (American Lifelines Alliance). 2001. Seismic fragility formulations for water systems. American Society of Civil Engineers.
https://www.americanlifelinesalliance.com/pdf/Part_1_Guideline.pdf
. Accessed 30 Dec 2016.
2. Ballantyne, D., J. Eidinger, and C. Howard. 2002. Lifelines. Earthquake Spectra 18(S1): 343–361.
3. Ballantyne, D., A.R. Guerrero, M. O’Rourke. and E.L. Krinitzsky. 1991. Lifelines. Earthquake Spectra 7(S2): 93–117.
4. Ballantyne, D., D. Kessler, W. Elliot. and C. Scawthorn. 1999. Multi-hazard risk assessment for lifelines—Part 2—case study for the Portland, Oregon water supply system. In Proceedings of the 5th US Conference on Lifeline Earthquake Engineering. Seattle, Washington, USA, August 1999.
5. Bernal, G.A. 2014. Methodology for the modelling, calculation and calibration of seismic hazard parameters to assess risk in a probabilistic way (Metodología para la modelación, cálculo y calibración de parámetros de la amenaza sísmica para la evaluación probabilista del riesgo). Ph.D. thesis. Universidad Politécnica de Cataluña. Barcelona, Spain (in Spanish).