Center for Research in Scientific Computation - 1981 Kelley, C. T. (1981). A note on the approximation of functions of several variables by sums of functions of one variable. Journal of Approximation Theory, 33(3), 179–189. https://doi.org/10.1016/0021-9045(81)90068-x Siewert, C. E., Kelley, C. T., & Garcia, R. D. M. (1981). An analytical expression for the H matrix relevant to Rayleigh scattering. Journal of Mathematical Analysis and Applications, 84(2), 509–518. https://doi.org/10.1016/0022-247x(81)90183-9 Kelley, C. T. (1981). Approximate methods for exit distribution problems in inhomogeneous slabs. Progress in Nuclear Energy, 8(2-3), 227–234. https://doi.org/10.1016/0149-1970(81)90017-2 Kelley, C. T. (1981). Multi-group neutron transport in inhomogeneous slabs. Journal of Integral Equations, 3, 261–275.