APA (7th ed.) Citation

Costa, Â., Novais, P., Costa, R. A. F., Machado, J. M., & Neves, J. (2009). A memory assistant for the elderly.

Chicago Style (17th ed.) Citation

Costa, Ângelo, Paulo Novais, Ricardo André Fernandes Costa, José Manuel Machado, and José Neves. A Memory Assistant for the Elderly. 2009.

MLA (8th ed.) Citation

Costa, Ângelo, et al. A Memory Assistant for the Elderly. 2009.