Chebotar, M. A.M. A.ChebotarLee, P. H.P. H.LeeFong, Y.Y.Fong2010-05-092018-06-282010-05-092018-06-282005http://ntur.lib.ntu.edu.tw//handle/246246/181520application/pdf200993 bytesapplication/pdfen-USOn maps preserving square-zero matricesjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/181520/1/14.pdf