United Nations Group of Experts on Geographical Names. (online version) Browne, Gerald M. (2002) A grammar of Old Nubian. Munich: LINCOM. . Burckhardt, Johann Ludwig (or John Lewis) (1819) Travels in Nubia. London. (online version) Heine, Bernd & Tania Kuteva (2001) 'Converge and divergence in the development of African languages', chapter 14 of Aikhenvald & Dixon (eds.) Areal Diffusion and Genetic Inheritance: Problems in Comparative Linguistics, 393–411. Lepsius, R. (1880) Nubische Grammatik. Mit einer Einleitung über die Völker und Sprachen Afrikas. Berlin. Rouchdy, Aleya (1992a) '"Persistence" or "tip" in Egyptian Nubian', in Nancy Dorian (ed.) Investigating Obsolescence: Studies in Language Contraction and Death. Cambridge: Cambridge University Press, 91–102. Rouchdy, Aleya (1992b) 'Urban and non-urban Egyptian Nubian: is there a reduction in language skill?', in Nancy Dorian (ed.) Investigating Obsolescence: Studies in Language Contraction and Death. Cambridge: Cambridge University Press, 259–266. Thelwall, Robin (1978) "Lexicostatistical relations between Nubian, Daju and Dinka", Études nubiennes: colloque de Chantilly, 2-6 juillet 1975, 265–286. Thelwall, Robin (1982) "Linguistic Aspects of Greater Nubian History", in Ehret, C. & Posnansky, M. (eds.) The Archeological and Linguistic Reconstruction of African History. Berkeley/Los Angeles, 39–56. (online version with OCR errors) Werner, Roland (1987) Grammatik des Nobiin (Nilnubisch) (Nilo-Saharan Studies vol. 1). Hamburg: Helmut Buske Verlag. Westermann, Diedrich Hermann & Ward, Ida (1933) Practical Phonetics for Students of African Languages. London [etc.]: Oxford University Press for the International African Institute. External links Nobiin audio samples and alphabet Nobiin basic lexicon at the Global Lexicostatistical Database New website with Nobiin texts and audio samples: www.nobiin.com ELAR Archive deposit of Nobíin, a Nubian language by Kirsty Rowan & Herman Bell Nubian languages + Nubia Languages of Sudan Languages of Egypt