Freeman, E. , Vo, D.-B. and Brewster, S. (2019) HaptiGlow: Helping Users Position their Hands for Better Mid-Air Gestures and Ultrasound Haptic Feedback. In: IEEE World Haptics Conference 2019, the 8th Joint Eurohaptics Conference and the IEEE Haptics Symposium (WHC 2019), Tokyo, Japan, 9-12 July 2019, ISBN 9781538694619 (doi: 10.1109/WHC.2019.8816092)

Freeman, E. , Marzo, A., Kourtelos, P. B., Williamson, J. R. and Brewster, S. (2019) Enhancing Physical Objects with Actuated Levitating Particles. In: 8th ACM International Symposium on Pervasive Displays (PerDis ’19), Palermo, Italy, 12-14 Jun 2019, ISBN 9781450367516 (doi: 10.1145/3321335.3324939)

Freeman, E. , Williamson, J. R. , Kourtelos, P. and Brewster, S. (2018) Levitating Particle Displays with Interactive Voxels. In: 7th ACM International Symposium on Pervasive Displays (PerDis ’18), Munich, Germany, 06-08 Jun 2018, p. 15. ISBN 9781450357654 (doi: 10.1145/3205873.3205878)

Freeman, E. , Williamson, J. , Subramanian, S. and Brewster, S. (2018) Point-and-Shake: Selecting from Levitating Object Displays. In: 2018 CHI Conference on Human Factors in Computing Systems, Montréal, QC, Canada, 21-26 Apr 2018, p. 18. ISBN 9781450356206 (doi: 10.1145/3173574.3173592)

Williamson, J. , Freeman, E. and Brewster, S. (2017) Levitate: Interaction with Floating Particle Displays. In: 6th ACM International Symposium on Pervasive Displays, Lugano, Switzerland, 7-9 June 2017, Article 24. ISBN 9781450350457 (doi: 10.1145/3078810.3084347)

Freeman, E. , Anderson, R., Andersson, C., Williamson, J. and Brewster, S. (2017) Floating Widgets: Interaction with Acoustically-Levitated Widgets. In: 2017 ACM International Conference on Interactive Surfaces and Spaces (ISS '17), Brighton, UK, 17-20 Oct 2017, pp. 417-420. ISBN 9781450346917 (doi: 10.1145/3132272.3132294)

Freeman, E. , Anderson, R., Williamson, J. , Wilson, G. and Brewster, S. A. (2017) Textured Surfaces for Ultrasound Haptic Displays. In: 19th ACM International Conference on Multimodal Interaction (ICMI 2017), Glasgow, Scotland, 13-17 Nov 2017, pp. 491-492. ISBN 9781450355438 (doi: 10.1145/3136755.3143020)