| Title | On Cooperative Patrolling: Optimal Trajectories, Complexity Analysis, and Approximation Algorithms | 
| Publication Type | Journal Article | 
| Year of Publication | 2012 | 
| Authors | Bullo F, Franchi A, Pasqualetti F | 
| Journal | IEEE TRANSACTIONS ON ROBOTICS | 
| Volume | 28 | 
| Pagination | 592-606 | 
| Date Published | JUN | 
