@Article{bgd-3-23-2006,
AUTHOR = {Hoover, r. b.},
TITLE = {Comets, carbonaceous meteorites, and the origin of the biosphere},
JOURNAL = {Biogeosciences Discussions},
VOLUME = {3},
YEAR = {2006},
NUMBER = {1},
PAGES = {23--70},
URL = {http://www.biogeosciences-discuss.net/3/23/2006/},
ISSN = {1810-6277}
}