Hsu, Jyh-PingJyh-PingHsuLin, Sung-HwaSung-HwaLin2008-12-102018-06-282008-12-102018-06-282003http://ntur.lib.ntu.edu.tw//handle/246246/89985application/pdf330682 bytesapplication/pdfen-USAnalysis of co-extrusion process for preparation of gradient index plastic optical fiberjournal article10.1016/S0032-3861(03)00575-52-s2.0-0042029417http://ntur.lib.ntu.edu.tw/bitstream/246246/89985/1/53.pdf