黃光照蕭志明Kuang-Chao Huang, Chih-Ming Hsiao2014-10-272014-10-272013-10-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/7970最大水平射程之仰角的簡易推導Optimum projection angle of maximizing the horizontal Range of the shot using two simple approachs