The Deliboz was a traditional local breed of Oriental type, with similarities to Persian and Turkoman horses;[4]: 461 it was distributed mainly in the Agstafa, Qazakh and Tovuzrayons of north-western Azerbaijan, and also in neighbouring areas of Armenia and Georgia. In the 1930s and 1940s, under the Soviet régime, a number of horses were selected from the general horse population as typical of the Deliboz type; some of these were crossed with Arab and Karabakhstallions. From the 1950s there was no further introgression from the Karabakh; cross-breeding with Arab and Tersk stallions continued.[5]: 281
^N.G. Dmitriev, L.K. Ernst (1989). Animal genetic resources of the USSR. FAO animal production and health paper 65. Rome: Food and Agriculture Organization of the United Nations. ISBN9251025827. Archived 13 November 2009. Also available here, archived 29 September 2017.