Lee, Tsiu-KwenTsiu-KwenLee2010-10-152018-06-282010-10-152018-06-281986-01http://ntur.lib.ntu.edu.tw//handle/246246/216047en-USNote on Nilpotent Derivationsjournal article10.1090/S0002-9939-1986-0848869-32-s2.0-84968519565WOS:A1986E036900008