Research. The first data on the Khakass language and its dialects dates back to the 19th century. In 1857 A. Castrén's study of the grammar of the Koibal and Karagass dialects was published (Versuch einer kobalischen und karagassischen Sprachlehre). Next, in 1884, came a dictionary of the Altai and Aladag dialects by V. Verbitsky. This was followed by ethnological studies by N. Katanov (1907) and V. Radlov (1929). During the Soviet period research into the language continued in connection with the introduction of a new written language. A. Kazanakov worked out the orthography of the literary language and wrote the first text-books. In 1944 an Institute for Research into the Khakass language, literature and history was founded in Abakan, and began organizing the collection of material on dialects, the standardization of the literary language and research into Khakass and its kindred languages. A theoretical treatment of the grammar of the Khakass language was published in 1948 by N. Dyrenkova, and a Khakass-Russian dictionary in 1961 (D. Tshankova). Some monographs on dialects (on the Sagai dialect in 1948, on the Katchin dialect in 1959) have also been published. REFERENCES O. Kurs, Krimmitatarlased. -- Akadeemia 2, 1991 Ð. Ð. БаÑкаков, К иÑтории Ð¸Ð·ÑƒÑ‡ÐµÐ½Ð¸Ñ Ñ…Ð°ÐºÐ°ÑÑкого Ñзыка. -- ЗапиÑки хакаÑÑкого научно-иÑÑледовательÑкого инÑтитута Ñзыка, литературы и иÑтории. Вып. II, Ðбакан 1951 Ð. Ð. БаÑкаков, ТюркÑкие Ñзыки, МоÑква 1960 М. И. БоргоÑков, ИÑточники и иÑÑ‚Ð¾Ñ€Ð¸Ñ Ð¸Ð·ÑƒÑ‡ÐµÐ½Ð¸Ñ Ñ…Ð°ÐºÐ°ÑÑкого Ñзыка, Ðбакан 1981 Ð’. Г. Карпов, ХакаÑÑкий Ñзык. -- Языки народов СССР. Т. II, МоÑква 1966 Ð. Ф. Катанов, ÐÐ°Ñ€ÐµÑ‡Ð¸Ñ ÑƒÑ€Ñнхайцев (Ñоитов), абаканÑких татар и карагаÑов. -- Образцы народной литературы Ñеверных тюркÑких племен. Т. IÐ¥, С.-Перербург 1907 Очерки иÑтории ХакаÑÑии ÑоветÑкого периода 1917--1961, Ðбакан 1963 Ð’. Ð’. Радлов, ÐтнографичеÑкий обзор турецких племен Сибири и Монголии, ИркутÑк 1929 ХакаÑÑ‹. -- Ðароды Сибири, МоÑква -- Ленинград 1956