1. C.A.Coulomb, "Essai sur une application des regles des maximis et minimis a quelques problemes de statique relatifs a l'architecture," Mem. Math. Phys. Acad. Roy. Sci. par divers Savants, Paris, 7 (1776).
2. WJM. Rankine, "On the stability of loose earth," Philos. Trans. Roy. Soc., London, 147 (1857).
3. D-Y. Zhu, and Q-H Qian, CF. Lee, "Active and passive critical slip fields for cohesionless soils and calculation of lateral earth pressures," Geotechnique, 51(5), 407-423 (2001).
4. J. Kerisel and E. Absi, Active and passive earth pressure tables, Balkema, Rotterdam (1990).
5. V.V. Sokolovskii, Statics of granular media, Pergamon Press Oxford (1965).