@article{CG:MS07,
	author = {Ian Molloy and Tomasz F. Stepinski},
	title = {Automatic Mapping of Valley Networks on {M}ars},
	journal = {Computers \& Geosciences},
	issn = {0098-3004},
	volume = {33},
	number = {6},
	year = {2007},
	pages = {728--738},
	doi = {http://dx.doi.org/10.1016/j.cageo.2006.09.009},
	Crossref = {CG07}
}