Eugene Ulrich, “Identification of a Scribe Active at Qumran: 1QPsb-4QIsac-11QM,” in M. Bar-Asher and E. Tov, eds., Meghillot: Studies in the Dead Sea Scrolls V-VI. A Festschrift for Devorah Dimant (Jerusalem: Bialik Institute and Haifa University Press, 2007) pp. 201–210. Ulrich has informed me (private communication) that this same scribe also penned 4QDanb.