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Fonseca-Neto, Joel B.; Rebouças, M. J.; MacCallum, M. A. H. Algebraic computing in torsion theories of gravitation. (English) Zbl 1037.83500 Math. Comput. Simul. 42, No. 4-6, 739-748 (1996). MSC: 83-04 68W30 PDFBibTeX XMLCite \textit{J. B. Fonseca-Neto} et al., Math. Comput. Simul. 42, No. 4--6, 739--748 (1996; Zbl 1037.83500) Full Text: DOI