Della Bona, Alessandro; Ferretti, Gianni; Ficara, Elena; Malpei, Francesca: 'Parameter identification of a reduced order LFT model of anaerobic digestion' (Control, Robotics and Sensors, 2015), 'Control-oriented Modelling and Identification: Theory and practice', Chap. 14, pp. 301-327, DOI: 10.1049/PBCE080E_ch14 IET Digital Library, https://digital-library.theiet.org/;jsessionid=bqkjr3wrno7r.x-iet-live-01content/books/10.1049/pbce080e_ch14