Krug, ManfredManfredKrug0000-0002-9508-84682019-09-192014-09-242000https://fis.uni-bamberg.de/handle/uniba/14012Zugl.: Freiburg (Breisgau), Univ., Diss., 1999engEmerging English modals : a corpus based study of grammaticalizationdoctoralthesis