by William E. Lightfoot, 2003. The Three Doc(k)s: White Blues in Appalachia, Black Music Research Journal, Vol. 23, No. 1/2, pp. 167-193; see also "Brown's Ferry Four" by Bruce Eder, Allmusic
Lightfoot, William E. 1990. "A regional musical style: The legacy of Arnold Shultz," in Sense of place: American regional cultures, edited by Barbara Allen and Thomas J. Schlereth, 120-137. Lexington: University Press of Kentucky; Kienzle, Rich. "The evolution of country fingerpicking"
