TY - BOOK AU - MacCallum, M.A.H. AU - McCrea, J.D. AU - McLenaghan, R.G. AU - Skea, J.E.F. TI - Algebraic computing in general relativity: : Lecture notes from the first brazilian school on computer algebra T2 - Oxford Science Publications SN - 0198536461 U1 - 530.11028553 PY - 1994/// CY - New York: PB - Oxford University Press, KW - Algebra system KW - Classify matrics KW - Gauge theory KW - Physics ER -