The formation of gullies on Mars today Dundas, C. M. ; McEwen, Alfred S. ; Diniega, S. ; Hansen, C. J. ; Byrne, S. ; McElwaine, J. N. Abstract Publication: Geological Society of London Special Publications Pub Date: January 2019 DOI: 10.1144/SP467.5 Bibcode: 2019GSLSP.467...67D