https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4806032 (Publisher version)
Franchi, A., Freda, L., Oriolo, G., & Vendittelli, M. (2009). The sensor-based random graph method for cooperative robot exploration. IEEE/ASME Transactions on Mechatronics, 14(2), 163-175. doi:10.1109/TMECH.2009.2013617.