Composite Sickles and Cereal Harvesting Methods at 23,000-Years-Old Ohalo II, Israel Groman-Yaroslavski, Iris ; Weiss, Ehud ; Nadel, Dani Abstract Publication: PLoS ONE Pub Date: November 2016 DOI: 10.1371/journal.pone.0167151 Bibcode: 2016PLoSO..1167151G