Philipp and Arlette Bothorel-Witz. 1990. Low Alemannic. In Charles V. J. Russ (ed.), The Dialects of modern German: a linguistic survey, 313–336. Routledge
Old High German (Thuringia is subsumed under Old Frankish in the map). It should be noted that the division of Old High German into Alemannic and Bavarian