K. Beyer and J. J. Bommer, “Selection and Scaling of Real Accelerograms for Bi-Directional Loading: A Review of Current Practice and Code Provisions,” Journal of Earthquake Engineering, Vol. 11, No. S1, 2007, pp. 13-45. doi:10.1080/13632460701280013
 H. Tajimi, “A Statistical Method of Determining the Maximum Response of a Building Structure during an Earthquake,” Proceedings of the 2nd World Conference on Earthquake Engineering, Tokio, 11-18 July 1960, pp. 781-798.
 K. W. Campbell, “Prediction of Strong Ground Motion Using the Hybrid Empirical Method: Example Application to Eastern North America,” Bulletin of the Seismological Society of America, Vol. 93, No. 3, 2002, pp. 1012-1033. doi:10.1785/0120020002
 P. J. Stafford, S. Sgobba and G. C. Marano, “An Energy-Based Envelope Function for the Stochastic Simulation of Earthquake Accelerograms,” Soil Dynamics and Earthquake Engineering, Vol. 29, No. 7, 2009, pp.1123-1133. doi:10.1016/j.soildyn.2009.01.003
 J. W. Baker, “Correlation of Ground Motion Intensity Parameters Used for Predicting Structural and Geotechnical Response,” Proceedings of the 10th International Conference on Applications of Statistics and Probability in Civil Engineering, Tokyo, 31 July-3 August 2007.
 G. C. Marano, M. Morga and S. Sgobba, “Modelling of Stochastic Process for Earthquake Representation as Alternative Way for Structural Seismic Analysis: Past, Present and Future,” International Conference on Earthquake Analysis and Design of Structures, 1-3 December 2011, Coimbatore, pp. 61-73.
 J. P. Conte and B. F. Peng, “Fully Nonstationary Analytical Earthquake Ground-Motion Model,” ASCE, Journal of Engineering Mechanics, Vol. 12, No. 1, 1997, pp. 15-24. doi:10.1061/(ASCE)0733-9399(1997)123:1(15)