2-D vs. 3-D Grain-Size Analysis Techniques: A Comparison Applied to Metal Grains in Gujba Duffy, C. M. ; Abel, R. L. ; Bland, P. A. ; Twelker, E. Abstract Publication: Meteoritics and Planetary Science Supplement Pub Date: September 2010 Bibcode: 2010M&PSA..73.5195D