D. Ancona, M. Freeston, T. Smith, and S. Fabrikant. Visual Interfaces to Digital Libraries, volume 2539 of Lecture Notes in Computer Science, page 199-216. Springer, (2002)
A. Bruggmann, S. Fabrikant, and R. Purves. International Journal of Humanities and Arts Computing, 14 (1-2):
98--118(February 2020)Publisher: Edinburgh University Press.