The Audio Abacus: Representing a Wide Range of Values with Accuracy and Precision. - Bruce N. Walker; Lisa M. Mauney; Justin Godfrey (ICAD, 2004)

Universal Design of Auditory Graphs: A Comparison of Sonification Mappings for Visually Impaired and Sighted Listeners. - Bruce N. Walker; Lisa M. Mauney (ACM Trans. Access. Comput., 2010)