Today I received a digital copy of the entry on Gath which I wrote for the Oxford Encyclopedia of the Bible and Archaeology.
This a rather extensive entry on the site (textual references and archaeology), updated to early 2013.
Here is the pdf – Maeir_Gath_Oxford Encyc Bible and Archaeology_2013
The full reference is:
Maeir, A. M. 2013 Gath. Pp. 443–51 in The Oxford Encyclopedia of the Bible and Archaeology, ed. D. M. Master. New York: Oxford.