Gerhard Doerfer

Gerhard Doerfer (8 March 1920 – 27 December 2003) was a German Turkologist, Altaist, and philologist best known for his studies of the Turkic languages, especially Khalaj.
Doerfer spent his childhood in Königsberg and Berlin. After release from captivity following the World War II, from 1949 to 1954 he took in Berlin courses in Turkic and Altaic languages, Islamic and Iranian Studies. In 1955–57 he was an assistant professor in Mainz University, in 1960 he moved to the Göttingen University, where in 1966 he became an associate professor. Between 1968 and 1973, he conducted several expeditions to research the Turkic Khalaj and Oguz languages in Persia. In 1970 Doerfer became a professor of a newly founded for him Chair of Turkic and Altaistic Studies at the Georgia Augusta Göttingen University; in 1975–1976, Doerfer served a tour of a Visiting Professor at Istanbul University. In his extensive and multi-faceted studies, Doerfer investigated Mongolian and Turkic elements in Persian language, culture, and folklore, wrote his four-volume "Türkische und mongolische Elemente im Neupersischen" (1963–75), and contributed greatly to the study of Persian-Turkic language contacts (1967).
Doerfer dismissed the validity of the Altaic language family concept. He argued that the words and features shared by Turkic, Mongolic, and Tungusic were cultural borrowings, and that any other similarities should be attributed to chance resemblances. He further states that if all three languages were genetically connected, the comparative language losses over time should be random instead of being limited to the geographical fringes of the family.