References
- Kalsbeek J. W. H., Ettema J. H. Physiological and psychological evaluation of distraction stress. Proc. 2nd Int. Ergonomic Congress, Dortmund, 1964, 443–447
- Pollack I., Pickett J. M. Stereophonic listening and speech intelligibility against voice babble. J. acoust. Soc. Amer. 1958; 30: 131