1. 1) Sangster, W. M., Wood, H. W., Smerdon, E. T. and Bossy, H. G. : Pressure Changes at Open Junctions in Conduits, Trans., ASCE, 126, pp. 364-396, 1961.
2. 2) Marsalek, J. : Head Losses at Selected Sewer Manholes, Special Report 52, American Public Works Association, Chicago, IL, 1985.
3. 3) Lindvall, G. : Head Losses at Surcharged Manholes with a Main Pipe and 90° Lateral, Proc. 3nd Int. Conf. on Urban Storm Drainage, Chalmers Univ. of Technology, Goetborg, Sweden, pp. 137-146, 1984.
4. 4) Johnston, A. J. and Volker, R. E. : Head Losses at Junction Boxes, J. Hydraul. Eng. Am. Soc. Civ. Eng. Vol. 116, No. 3, pp. 326-341, 1990.
5. 6) Urban Drainage Design Manual, HEC22 (http://www.fhwa.dot.gov/bridge/hec22.pdf), 2001.