Wiesbaden: Harrassowitz, 1985. — 307 p. — (Tungusica Band 3). — ISBN: 3-447-02502-6.
This German-edition publication is a comparative linguistics work dealing with the Tungusic and Mongolic languages. Using extensive lexical comparisons, and statistical methods, Doerfer attempts to disprove the Altaic genetic language theory in this milestone work.