@article{heyser1973the, title = {The Delay Plane, Objective Analysis of Subjective Properties-Part 2}, author = {Heyser, Richard C.}, journal = {J. Audio Eng. Soc}, volume = {21}, number = {10}, pages = {786--791}, year = {1973}, url = {https://www.aes.org/e-lib/browse.cfm?elib=1922} }