TY - BOOK AU - Atkinson Kendall AU - Han Weimin TI - Spherical harmonics and approximations on the unit sphere : an introduction SN - 978-3-642-25982-1 U1 - 515.53 PY - 2012/// CY - Berlin PB - Springer-Verlag KW - Approximation theory KW - Integral equations KW - Numerical analysis KW - Spherical harmonics ER -