Mastrolonardo, Giovanni Size fractionation as a tool for separating charcoal of different fuel source and recalcitrance in the wildfire ash layer. [electronic resource] - The Science of the total environment Oct 2017 - 461-471 p. digital Publication Type: Journal Article ISSN: 1879-1026 Standard No.: 10.1016/j.scitotenv.2017.03.295 doi