Selberherr, Siegfried; Fischer, Claus; Halama, Stefan; Pichler, Christoph; Rieger, Gerhard; Schrom, Gerhard; Simlinger, Thomas: 'Device structures and device simulation techniques' (Materials, Circuits and Devices, 1996), 'Low-power HF Microelectronics: a unified approach', Chap. 2, pp. 57-84, DOI: 10.1049/PBCS008E_ch2
IET Digital Library, https://digital-library.theiet.org/;jsessionid=v5tr5p290t9l.x-iet-live-01content/books/10.1049/pbcs008e_ch2