@article{Lammer2009, author = {Lammer, H. and Bredehöft, J. H. and Coustenis, A. and Khodachenko, M. L. and Kaltenegger, L. and Grasset, O. and Prieur, D. and Raulin, F. and Ehrenfreund, P. and Yamauchi, M. and Wahlund, J.-E. and Grießmeier, J.-M. and Stangl, G. and Cockell, C. S. and Kulikov, Y. N. and Grenfell, J. L. and Rauer, H.}, year = {2009}, pages = {181–249}, title = {What makes a planet habitable?}, volume = {17}, journal = {Astron. Astrophys. Rev.} }