Alley, R. B; Saltzman, E. S; Cuffey, K. M; & Fitzpatrick, J. J. (1990). Summertime formation of Depth Hoar in central Greenland. Geophysical Research Letters, 17(13), 2393-2396. doi: 10.1029/GL017i013p02393. UC Irvine: Department of Earth System Science, UCI. Retrieved from: http://www.escholarship.org/uc/item/39r9f3d5