1. G.T. Anthony and M.G. Cox(1987), The National Physical Laboratory’s Data Approximation Subroutine Library. In J.C. Mason and M.G. Cox, editors, Algorithms for Approximation, p 669–687, Oxford, 1987, Clarendon Press.
2. C. de Boor(1972), On calculating with Bsplines, Journal of Approximation Theory (1972) 6, p 50–62
3. C. de Boor(1978), A Practical Guide to Splines, Springer-Verlag, 1978
4. M.G. Cox(1971), The Numerical Evaluation of B-Splines, NPL, Teddington, England
5. M.G. Cox(1990), Linear Algebra Support Modules for Approximation and Other Software, In J.C. Mason and M.G. Cox, editors, Scientific Software Systems, p 21–29, London, 1990, Chapman and Hall