T. J. Silva et al.,  "First and second-level digital divides and cultural capital: Framing digital lives of seniors in Portugal and Europe", in 9th Int. Conf. on Human Aspects of IT for the Aged Population, ITAP 2023, held as part of the 25th Int. Conf. on Human-Computer Interaction, HCII 2023, Proc., Qin Gao, Jia Zhou, Ed., Copenhagen, Springer Nature, 2023, pp. 489-504