BibTex format
@article{Ehrenfreund:2011:10.1017/S1473550411000140,
author = {Ehrenfreund, P and Roling, WFM and Thiel, CS and Quinn, R and Sephton, MA and Stoker, C and Kotler, JM and Direito, S and Martins, Z and Orzechowska, G and Kidd, RD and van, Sluis CA and Foing, BH},
doi = {10.1017/S1473550411000140},
journal = {International Journal of Astrobiology},
pages = {239--253},
title = {Astrobiology and habitability studies in preparation for future Mars missions: trends from investigating minerals, organics and biota},
url = {http://dx.doi.org/10.1017/S1473550411000140},
volume = {10},
year = {2011}
}