1990
Makous, J.C. and Middlebrooks, J.C. (1990) 'Two-dimensional sound localization by human listeners', Journal of the Acoustical Society of America, 87, 2188-200. (Siren)

While the study "Two-dimensional sound localization by human listeners" (1990) by J.C. Makous and J.C. Middlebrooks is a foundational paper in psychoacoustics, it is often cited alongside the work of Max Neuhaus in the context of auditory perception and sound design.