R.K. Wright, Accurate Approximation of Functions with Discontinuities,
Using Low Order Fourier Coefficients,
Proceedings of the Algorithms for Approximation
IV International Symposium, University of Huddersfield, U.K. July 2001
R.K. Wright, Local Spline Approximation of Discontinuous Functions and Location of Discontinuities
Given Low Order Fourier Coefficient Information:
J. Comput. Appl. Math. 164-165C (2004) 783-795
R.K. Wright, Local approximation on surfaces with discontinuities,
given limited order Fourier coefficients:
J. Comput. Appl. Math. 218 (2008) 532-542