1. ASCE
(1984). Guidelines for the seismic design of oil and gas pipeline systems ASCE New York NY.
2. ASTM D698 (2003). "Standard test method for laboratory compaction characteristics of soil using standard effort (12 400 ft-lbf/ft 3 (600 kN-m/m 3 ))." 2003 annual book of standards Vol. 04.08 West Conshohocken PA.
3. ASTM D1556 (2003). "Standard test method for density and unit weight of soil in place by the sand-cone method." 2003 annual book of standards Vol. 04.08 West Conshohocken PA.
4. Bilgin Ö. and Stewart H. E. (2006). "Effect of temperature on surface hardness and soil interface shear resistance of geosynthetics." Proc. 8th International Conference on Geosynthetics Vol. 1 Yokohama Japan 251-254.
5. Design Guidelines for Polyethylene Pipe Interface Shear Resistance