INTEGRAL hard X-ray spectra of the cosmic X-ray background and Galactic ridge emission M. Türler, M. Chernyakova, T. J.-L. Courvoisier, P. Lubiński, A. Neronov, N. Produit and R. Walter A&A, 512 (2010) A49 Published online: 31 March 2010 DOI: 10.1051/0004-6361/200913072