Cortina: Collaborative context-aware indoor positioning employing RSS and RToF techniques. - Zheng Sun; Rick Farley; Telis Kaleas; Judy Ellis; Kiran Chikkappa (PerCom Workshops, 2011)

Cortina: collaborative indoor positioning using low-power sensor networks. - Gianni Giorgetti; Richard Farley; Kiran Chikkappa; Judy Ellis; Telis Kaleas (J. Locat. Based Serv., 2012)