Borja, R.I. "Free boundary, fluid flow, and seepage forces in excavations," Journal of Geotechnical Engineering, ASCE, 118(1), 1992, 125-146.
Borja, R.I. "Generalized creep and stress relaxaton models for clays," Journal of Geotechnical Engineering, ASCE, 118(11), 1992, 1765-1786.
Borja, R.I., Wu, W.H., and Smith, H.A. "Nonlinear response of vertically oscillating rigid foundations," Journal of Geotechnical Engineering, ASCE, 119(5), 1993, 893-911.
Kishnani, S.S. and Borja, R.I. "Seepage and soil-structure interaction in braced excavations," Journal of Geotechnical Engineering, ASCE, 119(5), 1993, 912-928.
Borja, R.I. and Wren, J.R. "Discrete micromechanics of elastoplastic crystals," International Journal for Numerical Methods in Engineering, 36(22), 1993, 3815-3840.
Borja, R.I., Wu, W.H., Amies, A.P., and Smith, H.A, "Nonlinear lateral, rocking, and torsional vibration of rigid foundations," Journal of Geotechnical Engineering, ASCE, 120(3), 1994, 491-513.
Borja, R.I. and Amies, A.P. "Multiaxial cyclic plasticity model for clays," Journal of Geotechnical Engineering, ASCE, 120(6), 1994, 1051-1070.
Smith, H.A., Wu, W.H., and Borja, R.I. "Structural control considering soil-structure interaction effects," Earthquake Engineering and Structural Dynamics, 23(6), 1994, 609-626.
Borja, R.I. and Wu, W.H. "Vibration of foundations on incompressible soils with no elastic region," Journal of Geotechnical Engineering, ASCE, 120(9), 1994, 1570-1592.