Franck, S., Block, A., von Bloh, W., Bounama, C., Schellnhuber, H. J., Svirezhev, Y. (2000): Habitable zone for Earth-like planets in the solar system. - Planetary and Space Science, 48, 11, 1099-1105.https://doi.org/10.1016/S0032-0633(00)00084-2