Structure and System in the Abaza Verbal Complex, by W. S. Allen

Transactions of the Philosophical Society, Oxford 1956, 127-176.
The Abaza (tapanta) language is spoken on the northern side of the Caucasus in the district of Cherkesskz (formerly Yezhov, formerly Sulimov, formerly Batalpashinsk), and by exiled communities in Turkey. It belongs to a closely related group with Abkhaz (apsawa) and other dialects, including (a)sqarawa; this group, which is sometimes also referred to as Abkhaz, is related in turn to Circassian or Adyghe (including Kabardian) and Ubykh, to form the western branch of the North Caucasian family.
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