Chu, Chong-SunChong-SunChuPEI-MING HO2018-09-102018-09-101998-12http://inspirehep.net/record/481438http://scholars.lib.ntu.edu.tw/handle/123456789/339919Noncommutative open string and D-branejournal article10.1016/S0550-3213(99)00199-6