المؤلفون: Rantakokko, J., Handel, P., Fredholm, M., Marsten-Eklof, F.

المصدر: 2010 International Conference on Indoor Positioning and Indoor Navigation

الاتاحة: http://dx.doi.org/10.1109/ipin.2010.5646765
http://xplorestaging.ieee.org/ielx5/5637226/5645818/05646765.pdf?arnumber=5646765