Ulrich Ammon's research while affiliated with Klinikum Duisburg and other places

Citations

... None of these are spoken natively by the majority or even a plurality of the population. Swahili, a Bantu language used as a lingua franca, is the language in which primary education is administered and literacy is taught (English is also used for this Linguistic Diversity: Basic Concepts and Implications for Reading Research purpose), but only 10% of the population speak Swahili as their native language, and fluency in Swahili as a second language varies among the adult population (Ammon et al., 2006). Thus, many children may not have sufficient exposure to this language prior to the start of schooling. ...