The Learning and Emergence of Mildly Context Sensitive Languages. - Edward P. Stabler; Travis C. Collier; Gregory M. Kobele; Yoosook Lee; Ying Lin; Jason Riggle; Yuan Yao; Charles E. Taylor (ECAL, 2003)

Adaptive communication among collaborative agents: preliminary results with symbol grounding. - Yoosook Lee; Travis C. Collier; Charles E. Taylor; Jason Riggle; Edward P. Stabler (Artif. Life Robotics, 2004)

Grammar Structure and the Dynamics of Language Evolution. - Yoosook Lee; Travis C. Collier; Gregory M. Kobele; Edward P. Stabler; Charles E. Taylor (ECAL, 2005)