Herdman, S. J., Tusa, R., & Clendaniel, R. (1994). Eye movement signs in vertical canal benign paroxysmal positional vertigo. In A. F. Fuchs, T. Brandt, U. Buttner, & D. S. Zee (Eds.), Contemporary Ocular Motor and Vestibular Research: A Tribute to David A. Robinson (pp. 385–387). New York: Thieme Medical Publishers.

Herdman, S. J., R. Tusa, and Richard Clendaniel. “Eye movement signs in vertical canal benign paroxysmal positional vertigo.” In Contemporary Ocular Motor and Vestibular Research: A Tribute to David A. Robinson, edited by A. F. Fuchs, T. Brandt, U. Buttner, and D. S. Zee, 385–87. New York: Thieme Medical Publishers, 1994.

Herdman SJ, Tusa R, Clendaniel R. Eye movement signs in vertical canal benign paroxysmal positional vertigo. In: Fuchs AF, Brandt T, Buttner U, Zee DS, editors. Contemporary Ocular Motor and Vestibular Research: A Tribute to David A Robinson. New York: Thieme Medical Publishers; 1994. p. 385–7.

Herdman, S. J., et al. “Eye movement signs in vertical canal benign paroxysmal positional vertigo.” Contemporary Ocular Motor and Vestibular Research: A Tribute to David A. Robinson, edited by A. F. Fuchs et al., Thieme Medical Publishers, 1994, pp. 385–87.

Herdman SJ, Tusa R, Clendaniel R. Eye movement signs in vertical canal benign paroxysmal positional vertigo. In: Fuchs AF, Brandt T, Buttner U, Zee DS, editors. Contemporary Ocular Motor and Vestibular Research: A Tribute to David A Robinson. New York: Thieme Medical Publishers; 1994. p. 385–387.