@article{TUW-232794, author = {Retscher, G{\"u}nther and Obex, Franz}, title = {Collaborative Navigation and Guidance in Underground Networks Using RFID}, journal = {Coordinates}, year = {2014}, volume = {10}, number = {7}, pages = {8--10}, url = {http://mycoordinates.org/collaborative-navigation-and-guidance-in-underground-networks-using-rfid/}, note = {invited} }