Alhamid, A. A., Negm, A., Abdelaal, G. M., Matin, M. A. (2002). 'Effect of submergence and slopes of polygonal under-gate sill on discharge characteristics of submerged uncritical flow', The Egyptian International Journal of Engineering Sciences and Technology, 6(EIJEST, Vol. 6, 2002), pp. 61-81. doi: 10.21608/eijest.2002.96571