R. K. Williams, A. Gasparri, G. Ulivi, and G. S. Sukhatme. "Generalized Topology Control for Nonholonomic Teams With Discontinuous Interactions." IEEE Transactions on Robotics, 33 (4), 994-1001, 2017. doi: 10.1109/TRO.2017.2683518.

D. Carboni, R. K. Williams, A. Gasparri, G. Ulivi, and G. S. Sukhatme. "Rigidity-Preserving Team Partitions in Multiagent Networks." IEEE Transactions on Cybernetics, 45 (12), 2640-2653, 2015. doi: 10.1109/TCYB.2014.2378552.

R. K. Williams, A. Gasparri, and G. Ulivi. "Decentralized matroid optimization for topology constraints in multi-robot allocation problems." IEEE International Conference on Robotics and Automation, 2017. doi: 10.1109/ICRA.2017.7989038.

R. K. Williams, A. Gasparri, G. S. Sukhatme, and G. Ulivi. "Global connectivity control for spatially interacting multi-robot systems with unicycle kinematics." IEEE International Conference on Robotics and Automation, 2015. doi: 10.1109/ICRA.2015.7139352.

D. Carboni, R. K. Williams, A. Gasparri, G. Ulivi, and G. S. Sukhatme. "Identifying Rigidity-Preserving Bipartitions in Planar Multi-Robot Networks." IFAC Proceedings Volumes, 47 (3), 8085-8090, 2014. doi: http://dx.doi.org/10.3182/20140824-6-ZA-1003.02074.

A. Gasparri, R. K. Williams, A. Leccese, and G. Ulivi. "Set Input-to-State Stability for spatially interacting multi-agent systems." IEEE Conference on Decision and Control, 2014. doi: 10.1109/CDC.2014.7040230.