1. American Concrete Pipe Association (ACPA). 2008a. Design data 20: Circular precast concrete manhole. American Concrete Pipe Association, Virginia, USA.
2. American Concrete Pipe Association (ACPA). 2008b. Design data 41: Manhole flotation. American Concrete Pipe Association, Virginia, USA.
3. Scale model testing and calibration of City of Ottawa sewer weirs
4. Brinkgreve, R.B.J., Broere, W., and Waterman, D. 2007. Plaxis 3D foundation reference manual Version 2. A.A. Balkema Publisher, Netherland.
5. Canadian Standards Association (CSA). 2004. CSA Standard A23.3-04, Design of concrete structures. Canadian Standards Association, Canada.