@article {966,
	title = {User Experience Comparison of Intelligent Personal Assistants: Alexa, Google Assistant, Siri and Cortana},
	journal = {13th International Conference on Ubiquitous Computing and Ambient ‪Intelligence UCAmI 2019‬},
	volume = {31},
	year = {2019},
	pages = {51},
	doi = {10.3390/proceedings2019031051},
	url = {https://doi.org/10.3390/proceedings2019031051},
	author = {Berdasco and L{\'o}pez and Diaz and Quesada and Guerrero}
}
