Abade, T., Gomes, T., Silva, J. L. & Campos, J. C. (2014). Design and evaluation of a smart library using the APEX framework. In Norbert Streitz, Panos Markopoulos (Ed.), Distributed, ambient, and pervasive interactions (pp. 307?318). Springer. https://doi.org/10.1007/978-3-319-07788-8_29