A new approach to the long-term reconstruction of the solar irradiance leads to large historical solar forcingA. I. Shapiro, W. Schmutz, E. Rozanov, M. Schoell, M. Haberreiter, A. V. Shapiro and S. NyekiA&A, 529 (2011) A67DOI: https://doi.org/10.1051/0004-6361/201016173
