@unpublished{Ye2026RobotElevator,
  author = {Ye, Siheng and Tong, Zejing and Zhang, Suiyi and Chieng, David},
  title = {{Robot–Elevator Interaction: From Physical Panel Recognition to Activation}},
  year = {2026},
  note = {IHCI 2026, Paper 105; accepted for oral presentation. Author version; proceedings publication not yet confirmed.},
  url = {https://philia17.github.io/research/robot-elevator-interaction/}
}