Chu, H.H.Chu2010-05-092018-06-282010-05-092018-06-282001http://ntur.lib.ntu.edu.tw//handle/246246/181498application/pdf154284 bytesapplication/pdfen-USPolynomial invariants of four-dimensional orthogonal groupsjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/181498/1/13.pdf