@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} }