1. Barkan, D. D. (1957). “Foundation engineering and drilling by vibration method.” Proc. 4 th Int. Conf. on Soil Mech. and Found. Engrg., pp. 3–7.
2. Coyle, H. M. and Sulaiman, I. H. (1967). “Skin friction for steel piles in sand.” Journal of the Soil Mechanics and Foundations Division, ASCE, Vol. 93, SM6, pp. 261–278.
3. Ferron, D. (2001). Eindringveralten von spundwandenbohlen und rammbarkeit von böden bei der vibrationsrammung, Diplomarbeit Nr. 326653, Fachgeiet Bodenmechanik und Grundbau, Univerität Kaiserslautern, p. 153.
4. Gonin, H., Holeyman, A. E., and Rocher-Lacoste, F. (2006). Vibratory pile driving and deep soil compaction, LCPC.
5. GRLWEAP (2005). Procedures and models version 2005, Pile Dynamics, Inc.