Koyama, Shin: 'Biological issue of electromagnetic fields and waves' (Energy Engineering, 2018), 'Wireless Power Transfer: Theory, technology, and applications', Chap. 12, pp. 229-250, DOI: 10.1049/PBPO112E_ch12
IET Digital Library, https://digital-library.theiet.org/;jsessionid=4lr8njhp8olsn.x-iet-live-01content/books/10.1049/pbpo112e_ch12