Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) J. Santos and M. J. RebouÇas and A. F. F. Teixeira,Segre types of symmetric two-tensors inn-dimensional spacetimes,General Relativity and Gravitation,0001-7701,Springer Science and Business Media LLC,1995-09,27,9,989-999,https://cir.nii.ac.jp/crid/1360017285234790912,https://doi.org/10.1007/bf02113081