Andrij A. Rovenchak, Valentin Vydrin. Quantitative properties of the Nko writing system. In Peter Grzybek, Emmerich Kelih, Ján Macutek, editors, Text and Language. Structures - Functions - Interrelations - Quantitative Perspectives. pages 171-182, Praesens Verlag, Wien, 2010.
Abstract is missing.