'Life cycle testing' (Energy Engineering, 2011), 'Ultracapacitor Applications', Chap. 10, pp. 279-310, DOI: 10.1049/PBPO059E_ch10
IET Digital Library, https://digital-library.theiet.org/;jsessionid=3qt8lo37mq92j.x-iet-live-01content/books/10.1049/pbpo059e_ch10