References:

Islam, M.N.(2023) “Intermediate principal stress effect on the shear behavior of granular materials: Discrete Element Model”, Draft.

Islam, M.N., Siddika. A, Hossain, M.B., Rahman, A. and Asad, M.A. (2011) “Effect of Particle Size on the Shear Strength Behavior of Granular Materials”, Journal of Australian Geomechanics, Vol.46, Issue 3, 75-86. http://arxiv.org/abs/1902.09079