• Computational modeling of Cyclic Mobility and Post-Liquefaction Site Response (Journal of Soil Dynamics and Earthquake Engineering, Volume 22, Issue 4, Pages 259-347, Authors: Elgamal, A., Yang, Z., Parra, E. June 2002)

• Numerical Analysis of Embankment Foundation Liquefaction Countermeasures (Journal of Earthquake Engineering, Authors: Elgamal, A., Parra, E., Yang, Z., Adalier K. May 2002)

• Modeling of Cyclic Mobility in Saturated Cohesionless Soils (International Journal of Plasticity, Pergamon, Elsevier Science Ltd.,  Authors: Elgamal, A., Yang, Z., Parra, E., Ragheb, A. November 2001)

• Seismic Site Response and Liquefaction-Induced Shear Deformation (7th US-JAPAN Workshop on Resistant Design of Lifeline Facilities and Countermeasures against Liquefaction, Seattle, WA,  Authors: Yang, Z., Parra, E., Elgamal, A. August, 1999)

• Soil Dilation and Shear Deformations During Liquefaction (Proceedings 4th Intl. Conference on Case Histories in Geotechnical Engineering, St. Louis, MO, March 8-15,  Authors: Elgamal, A., Dobry, R., Parra, E., Yang, Z. 1998, S. Prakash (Ed.), 1238-1259)

• Liquefaction Constitutive Model (Proceedings of the International Workshop on the Physics and Mechanics of Soil Liquefaction, LADE, P. ed. Baltimore, MD,  Authors: Elgamal, A., Parra, E., Yang, Z., Dobry, R., Zeghal, M. Sept. 1998)

• Influencia del Efecto Dilatante de los Suelos en la Respuesta Dinámica de Perfiles Geotécnicos (Memorias del Seminario Internacional de Ingeniería Sísmica – Aniversario del Terremoto de Caracas de 1967, UCAB, Caracas,  Authors: Parra, E. Julio 1997)

• Regional and site-specific design guidelines for the northeastern Venezuela development (Offshore Technology Conference, Paper OTC-008109, Vol. 2, Houston , pp. 795-802, Authors: Gajardo, E., Paga, M. and Sully, J.P. 1996) 

• Identification and modeling of earthquake ground response – I Site Amplification (Journal of Soil Dynamics and Earthquake Engineering, Volume 15, Pages 499-522, Authors: Elgamal, A., Zeghal, M., Parra, E., Gunturi, R., Tang, H., Steep, J. 1996)

• Identification and modeling of earthquake ground response – I Site Liquefaction (Journal of Soil Dynamics and Earthquake Engineering, Volume 15, Pages 523-547, Authors: Elgamal, A., Zeghal, M., Parra, E. 1996)

• Analysis of site liquefaction and remediation (11th World Conference on Earthquake Engineering, Acapulco, Mexico, Authors: Parra, E.,  Adalier, K.,  Elgamal, A., Ragheb, A., Zeghal, M. 1996)

• Analysis of site liquefaction using downhole array seismic records (11th World Conference on Earthquake Engineering, Acapulco, Mexico, Authors: Elgamal, A., Zeghal, M., Parra, E. 1996)

• Liquefaction of an artificial island in Kobe, Japan (Journal of Geotechnical Engineering, ASCE, Vol. 122, No. 1,  Authors: Elgamal, A., Zeghal, M., Parra, E. 1996)

• Backanalysis of deformations for case histories involving flow-type failures (Proceedings, International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil dynamics St. Louis, Missouri, Vol. 2, Authors: Sully, J.P., Fernandez, A. and Zalzman, S. 1995)

• Microzonation studies for Lake Maracaibo coastal protection system (Proceedings, International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil dynamics, St. Louis, Missouri, Vol. 2, Authors:Sully, J.P., Morales, O., Gajardo, E., Murria, J. and Abi Saab, J. 1995)

• Seismic hazard and site response analyses for Rio Caribe (Offshore Technology Conference, Houston Texas , Paper OTC-007663, Vol. 1, pp. 211-219, Authors: Sully, J.P., Gajardo, E., Paga, M., Fernandez, A. and Cascante, G. 1995)

• Identification and modeling of earthquake ground response (Proceedings of the First International Conference on Earthquake Geotechnical Engineering. ISHIHARA, K. ed. Tokyo, Elgamal, A., Zeghal, M., Parra, E. 1995)

• Development of site-dependent ratios of elastic response spectra (U.S.-JAPAN Workshop, Napa Valley California, Dobry, R., Parra, E. 1993)

• Development of site-dependent ratios of elastic response spectra (RRS) and site categories for building seismic codes (NCEER/SEAOC/BSSC Site Response Workshop, University of Southern California, California, Authors: Dobry, R., Martin, G., Parra, E., Bhattacharyya, A. 1992)

• Efecto de las condiciones geotécnicas locales en los movimientos fuertes de terreno (VI Jornadas Geotécnicas de la Ingeniería de Colombia, Bogotá, Echezuria, H., Sanchez, M., Parra, E. 1990)

• Espectros de diseño considerando las condiciones geotécnicas locales en los movimientos fuertes de terreno (XI Seminario Venezolano de Geotecnia. Caracas, Authors: Echezuria, H., Parra, E., Grases, J., Lopez, O., Cascante, G. 1988)

• Análisis probabilístico simplificado para el cálculo de estabilidad de taludes (X Seminario Venezolano de Geotecnia, Caracas, Authors: Echezuria, H., Parra, E., Alvarellos, J. 1988)

• Aspects of pile design for cyclic and dynamic loading with reference to API conditions for offshore structures (Proceedings, International Conference on Design and Construction of Deep Foundations, US FHWA, December, Orlando, Florida, Vol. 2, pp. 789-802, Authors: Sully, J.P, Paga, M., Bea, R., Gajardo, E., Gonzalez, R. and Fernandez, A. 1994)

•Site-specific offshore platform design: modification of API recommendations to consider local seismic conditions (Proceedings, 5th US National Conference on Earthquake Engineering, Chicago , Vol. 4, pp. 609-618, Authors: Paga, M., Sully, J.P., Gajardo, E. and Bea, R. 1994)

• Bearing capacity of a two-layer cohesive deposit with surface crust (International Symposium on Geotechnical Engineering of Soft Soils, Mexico , Vol. 1, pp. 358-388, Authors: Sully, J.P. and Echezuria, H. 1987)

• Stability of tank foundations on a cohesive hydraulic fill (Conference on Building on Marginal and Derelict Land , Glasgow , ICE, May, pp. 841-852, Author: Sully, J.P. 1986)

• An approach to evaluation of field CPTU dissipation data in overconsolidated fine-grained soil (Canadian Geotechnical Journal, Vol. 36, No. 2, pp. 369-381, Authors: Sully, J.P., Robertson, P.K., Campanella, R.G. and Woeller, D.J. 1999) 

• Evaluation of in situ anisotropy from crosshole and downhole shear wave velocity measurements (Geotechnique, Vol. 45, No. 2, pp. 267-282, Authors: Sully, J.P. and Campanella, R.G. 1995) 

• Guidelines for interpretation of CPTU test data for determination of consolidation and permeability parameters for soils (Canadian Geotechnical Journal, Vol. 29, No. 4, pp. 539-550, Authors: Robertson, P.K., Sully, J.P., Woeller, D.J., Lunne, T., Powell, J.J. and Gillespie, D.G. 1992)

• Effect of lateral stress on CPT penetration pore pressures (ASCE Journal of Geotechnical Engineering, Vol. 117, GT1, pp. 1082-1088, Authors: Sully, J.P. and Campanella, R.G. 1991)

• A DEM technique to simulate undrained  tests  (Computers and Geotechnics , Authors: Olivera, R and Rothenburg, L. 2004)

•Effect of interparticle friction angle on the undrained response of an idealized granular media  (Powders & Grains, Sttutgart , Authors: Olivera, R and Rothenburg, L. 2005)

• Simulations of Undrained Granular  Media  (Proceedings of the XXII National Conference in Soil Mechanics, Guadalajara Mexico Authors: Olivera, R and Rothenburg, L.2004)

• Evaluation of the Collapsibility of Soils in Some Areas of Guadalajara (Proceedings of the XX National Conference in Soil Mechanics, Puebla Mexico, Authors: Olivera, R. and Bueno, J. 1998)