Kang, M. C.M. C.Kang2010-05-162018-06-282010-05-162018-06-281979http://ntur.lib.ntu.edu.tw//handle/246246/183296application/pdf683633 bytesapplication/pdfen-USProjective modules over some polynomial ringsjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/183296/1/12.pdf