1. (2) Holland, S., and Morse, D. R., “Audio GPS: Spatial Audio in a Minimal Attention Interface”, Mobile HCI 01 Proc. (2001).
2. (3) Härmä, A., and Jakka, J., “Augmented Reality Audio for Mobile and Wearable Appliances”, Journal of the Audio Engineering Society, Vol. 52, Issue 6 (2004), pp.618-639.
3. (4) Mantell, J., Rod, J., Kage, Y., Delmotte, F., and Leu, J., “NAVINKO: Audio Augmented Reality-Enabled Social Navigation for City Cyclists”, Programme, Workshop Pervasive 2010 Proc. (2010).
4. (5) Miura, M., Kondo, K., and Isaka, H., “Sound presentation of audio reality system in environment with wind noise”, Proc. Inter-Noise 2011 (2011).