Petrini, Valerio; Di Mattia, Valentina; De Leo, Alfredo; Scalise, Lorenzo; Russo, Paola; Manfredi, Giovanni; Cerri, Graziano: 'Contactless monitoring of respiratory activity using electromagnetic waves for ambient assisted living framework: feasibility study and prototype realization' (Healthcare Technologies, 2017), 'Human Monitoring, Smart Health and Assisted Living: Techniques and technologies', Chap. 2, pp. 23-54, DOI: 10.1049/PBHE009E_ch2 IET Digital Library, https://digital-library.theiet.org/;jsessionid=1jdusik64lgqu.x-iet-live-01content/books/10.1049/pbhe009e_ch2