« Areal linguistics in Africa before a new approach to its genealogical language classification », Lecture 1 : « African language classification beyond Greenberg »,Tom Güldemann (Humboldt University –

« Areal linguistics in Africa before a new approach to its genealogical language classification », Lecture 2 : « The macro-areal profile of Afrabia », Tom Güldemann (Humboldt University – Berlin)

« Areal linguistics in Africa before a new approach to its genealogical language classification », Lecture 3 : « Language contact as an alternative to assumed genealogical relationships », Tom

« Areal linguistics in Africa before a new approach to its genealogical language classification », Lecture 4 : « Language families in space and time », Tom Güldemann (Humboldt University – Berlin)