Basu, P., Prezzi, M., and Basu, D. (2010). Drilled displacement piles: Current practice and design. DFI J., 4(1), 3–20.
 Eslami, A., Aflaki, E and Hosseini, B. (2011). Evaluating CPT and CPTu based pile bearing capacity estimation methods using Urmiyeh Lake Causeway pilling records. Scientica Iranica, 18(5): p. 1009-1019.
 Eslami, A. Fellenius, B.H. (1997). Pile capacity by direct CPT and CPTu methods applied to 102 case histories. Canadian Geotechnical Journal, 34(6):p.886-904.
 Van Impe, W. F., Viggiani, C., Van Impe, P. O., Russo, G., and Bottiau, M. (1998). Load settlement behaviour versus distinctive O-pile execution parameters. Proc., 2nd Int. Geotechnical Seminar Deep Foundation on Bored and Auger Piles–BAP III, A.A. Balkema, Amsterdam, Netherlands, 355–356.
 De Beer, E. (1988). Different behavior of bored and driven piles. In: Proceedings of the 1st international geotechnical seminar on deep foundations on bored and auger piles (BAP I), Rotterdam, Balkema, p. S.47–82.
 Peiffer, H, Van Impe W. (1993). Evaluation of pile performance based on soil stress measurements – ﬁeld test program. In: Proceedings of the 2nd international geotechnical seminar on deep foundations on bored and auger piles (BAP II), Rotterdam, Balkema, p. S.385–89.
 NeSmith, W. M. (2002). Design and installation of pressure-grouted, drilled displacement piles. Proc., 9th Int. Conf. on Piling and Deep Foundations, Deep Foundations Institute, NJ, 561–567.
 Siegel, T. C., NeSmith, W. M., NeSmith, W. M., and Cargill, P. E. (2007). Ground improvement resulting from installation of drilled displacement piles. Proceedings of DFI’s 32nd annual conference on deep foundations, Colorado Springs, U.S.A., pp. 129-138.
 Bustamanate, M. and Gianeselli, L.,)1998(. Installation parameters and capacity of screwed piles. Deep Foundations on Bored and Auger Piles, BAP III, Balkema, Rotterdam, pp. 95-108.
 NeSmith, W. M., Member, P.E. (2002). Static capacity analysis of Augered, pressure injected displacement piles: Chief Geotechnical Engineer, Berkel & Company Contractors, Inc., P.O Box 335, Bonner Springs, Kansas 66012, and ASCE.
 Meng, Z, Chen, J, Zhang, M. (2015). Field tests to investigate the installation effects of drilled displacement piles with screw shaped shaft in clay. 10.1061/ (ASCE) GT.1943-5606.0001371. American Society of Civil Engineers.
 Peiffer, H. (2009). The dmt as tool for the monitoring of the effect of pile installation on the stress state in the soil. In: Proceedings of the 5th international geotechnical Seminar on Deep Foundations on bored and auger Piles (BAP V). Ghent: CRC Press, p. S.135–42.
 Sakr, M.,)2011(. Installation and performance characteristics of high capacity helical piles in cohesion less soils. Deep Found. (DFI)5(1),39–57.
 Park, S. Roberts, L. (2012). Design methodology for axially loaded auger cast-in-place and drilled displacement piles. DOI: 10.1061/ (ASCE) GT.1943-5606.0000727. American Society of Civil Engineers.
 Prezzi, M and Basu, P. (2005). Overview of construction and design of auger cast in place and drilled displacement piles. In DFI’s 30th annual conference on deep foundations. Chicago, U.S.A.
 Brown, D. A. (2005). Practical considerations in the selection and use of continuous flight auger and drilled displacement piles. Proc., Geo-Frontiers: Advances in Designing and Testing Deep Foundations, ASCE, Reston, VA, 251–261.
 Albuquerque, P., Carvalho, D and Massad, F. (2001). Bored continuous flight auger and omega instrumented piles: Behavior under compression. In the 16th international conference on soil mechanics and geotechnical engineering. Osaka, Japan.
 Pirrello, S. (2017). Design and construction validation of pile performance through high strain dynamic tests for both contiguous flight auger and drilled displacement piles. International Journal of Geotechnical and Geological Engineering, 11(9): p. 759-765.
Tusha, C. D. H, Aoki, N., Rault, G., Thorel, L. and Garnier, J. (2012). Evaluation of the efficiencies of helical anchor plates in sand by centrifuge model tests, Canadian Geotechnical Journal, Vol. 49, No. 9, pp. 1102-1114.
 Weech, C. N., Eng. P, and Howie, J. A. (2012). Helical piles in soft sensitive soils- a field study of disturbance effects on pile capacity, VGS Symposium on Soft Ground Engineering.
 Moshfeghi, S and Eslami, A. (2018). Reliability based assessment of drilled displacement piles bearing capacity using CPT records. Marine Georesources and Geotechnology, p 1-14.
 Basou, P, Prezzi, M and Salgado, R. (2014). Modeling of installation and quantification of shaft resistance of drilled displacement piles in sand. International Journal of Geomechanics, 14(2): p. 214-229.
 O’Neil, M. (1994). Review of augered pile practice outside the United States. Journal of the Transportation Research Board, 1994. 1447: p. 3-9.
 Larisch, M. (2014). Behavior of stiff fine grained soil during the installation of screw auger displacement piles. The University of Queensland.
Gwizdala, K, Pajak, M, (2008). Influence of installation of piles with partial and full displacement of the soil on the subsoil strength. Architecture Civil Engineering Enviroment, 1:p. 43-50.
Zare, M. Eslami, A. (2014). Study of deep foundation performances by frustum confining vessel (FCV). International Journal of Civil Engineering, Vol. 12, No. 4, Transaction B: Geotechnical Engineering.
 Zarrabi, M. Eslami, A. (2016). Behavior of Piles under Different Installation Effects by Physical Modeling. Int. J. Geomech., 04016014.ASCE.
 Askari Fateh, A.M. Eslami, A. Fahimifar, A. (2016). Study of soil disturbance effect on bearing capacity of helical pile by experimental modelling in FCV. International Journal of Geotechnical Engineering.
 Livneh, B. and El Naggar, M.H. (2008), axial testing and numerical modeling of square shaft helical piles under compressive and tensile loading. Canadian Geotechnical Journal, 45(8): p.1142-1155.