1. ANSI S3. 6-1969;ANSI,1970
2. Batte Au, D. W. (1967). The role of the pinna in human localization.Proceedings of the Royal Society of London,168, Series B, 158–190.
3. Blauert, J. (1969/70). Sound localization in the median plane.Acustica,22, 205–213.
4. Bloch, E. (1893). Das binaurale Horen.Zeitschrift für Orhenheilkunde,24, 25–85.
5. Bloom, P. J. (1977). Creating source elevation illusions by spectral manipulation.Journal of the Audio Engineering Society,25, 560–565,