1. Modeling of annular fluid pressures in horizontal boring
2. Ariaratnam S. T. Stauber R. M. Bell J. et. al. Evaluation of rheologic properties of fluids returns from horizontal directional drilling. NASTT/ISTT No Dig Conference. Arlington 2003.
3. ASTM F1962-05 2005. Standard guide for the use of maxi-horizontal directional drilling for placement of polyethylene pipe or conduit under obstacles including river crossings. ASTM International West Conshohocken.
4. Baumert M.E. 2003. Experimental investigation of pulling loads and mud pressures during horizontal directional drilling installations. Ph.D. Thesis University of Western Ontario London Ontario.
5. Cai L.X. 2011. Investigation on dynamics of pipe during pullback in horizontal directional drilling installations. Ph.D. Thesis China University of Petroleum Qingdao China.