Banday, A. J. Cosmology, MPI for Astrophysics, Max Planck Society;
Cayón, L., Martínez-González, E., Argüeso, F., Banday, A. J., & Górski, K. M. (2003). COBE-DMR constraints on the non-linear coupling parameter: a wavelet based method. Monthly Notices of the Royal Astronomical Society, 339(4), 1189-1194. Retrieved from http://www.blackwell-synergy.com/links/doi/10.1046/j.1365-8711.2003.06269.x/abs/.