Dannenberg, Clare J. “Sociolinguistic constructs of ethnic identity: the syntactic delineation of Lumbee English.” Diss. Chapel Hill: U of North Carolina at Chapel Hill, 1999. 167 pages.
Montgomery, Michael, and Margaret Mishoe. “'He bes took up with a Yankee girl and moved up there to New York': the verb bes in the Carolinas and its history.” American Speech 74.3 (Fall, 1999): 240-281.