@article{carreon2026using,
  author    = {Carreon, Mario and Watanabe, Ko and Matsui, Tomokazu and Matsuda, Yuki and Ishimaru, Shoya and Suwa, Hirohiko and Yasumoto, Keiichi},
  journal   = {Research and Practice in Technology Enhanced Learning},
  pages     = {1--32},
  publisher = {MDPI},
  title     = {Using Face, Gaze, and Code Features Detected with Off-the-Shelf Equipment to Derive Student Emotion in an Introduction to Programming Context},
  volume    = {22},
  year      = {2026}
}