The Hittite Palace of the Tapigga citadel yielded an archive
See:
- Roger Matthews: Hittites and "barbarians" in the Late Bronze Age: regional survey in northern Turkey, Archaeology International1999 (3), pp.32–35 - http://doi.org/10.5334/ai.3011
- Charles Burney: Historical Dictionary of the Hittites, Scarecrow Press 2004, p. 193
- Tahsin Özgüç: Excavations at the Hittite Site, Maşat Höyük: Palace, Archives, Mycenaean Pottery. American Journal of Archaeology, 84(3), 1980, pp. 305-309