APA   Click to copy
Lee, M. L., & Dey, A. K. (2014). Sensor-based observations of daily living for aging in place. Ubiquitous Computing, 19(1), 27–43.

Chicago/Turabian   Click to copy
Lee, Matthew L., and Anind K. Dey. “Sensor-Based Observations of Daily Living for Aging in Place.” Ubiquitous Computing 19, no. 1 (November 31, 2014): 27–43.

MLA   Click to copy
Lee, Matthew L., and Anind K. Dey. “Sensor-Based Observations of Daily Living for Aging in Place.” Ubiquitous Computing, vol. 19, no. 1, Nov. 2014, pp. 27–43.

@article{matthew2014a,
  title = {Sensor-based observations of daily living for aging in place},
  year = {2014},
  month = nov,
  day = {31},
  issue = {1},
  journal = {Ubiquitous Computing},
  pages = {27-43},
  volume = {19},
  author = {Lee, Matthew L. and Dey, Anind K.},
  booktitle = {ubicomp},
  month_numeric = {11}
}