APA   Click to copy
Abowd, G. D., Dey, A. K., Brown, P. J., Davies, N., Smith, M. E., & Steggles, P. (1999). Towards a Better Understanding of Context and Context-Awareness. Ubiquitous Computing, 304–307.

Chicago/Turabian   Click to copy
Abowd, Gregory D., Anind K. Dey, Peter J. Brown, Nigel Davies, Mark E. Smith, and Pete Steggles. “Towards a Better Understanding of Context and Context-Awareness.” Ubiquitous Computing (August 26, 1999): 304–307.

MLA   Click to copy
Abowd, Gregory D., et al. “Towards a Better Understanding of Context and Context-Awareness.” Ubiquitous Computing, Aug. 1999, pp. 304–07.

@article{gregory1999a,
  title = {Towards a Better Understanding of Context and Context-Awareness},
  year = {1999},
  month = aug,
  day = {26},
  journal = {Ubiquitous Computing},
  pages = {304-307},
  author = {Abowd, Gregory D. and Dey, Anind K. and Brown, Peter J. and Davies, Nigel and Smith, Mark E. and Steggles, Pete},
  booktitle = {ubicomp},
  month_numeric = {8}
}