Source:
BIS devs Academic Paper: <a href='https://www.mic-journal.no/ABS/MIC-2017-4-1.asp/'>https://www.mic-journal.no/ABS/MIC-2017-4-1.asp/</a>
IBM patent (page 2): <a href='https://patentimages.storage.googleapis.com/8e/21/cb/25aaae13b0e165/US10880073.pdf'>https://patentimages.storage.googleapis.com/8e/21/cb/25aaae13b0e165/US10880073.pdf</a>
Bismuth papers: <a href='https://bismuthplatform.com/papers/'>https://bismuthplatform.com/papers/</a>
Source:
BIS devs Academic Paper: <a href='https://www.mic-journal.no/ABS/MIC-2017-4-1.asp/'>https://www.mic-journal.no/ABS/MIC-2017-4-1.asp/</a>
IBM patent (page 2): <a href='https://patentimages.storage.googleapis.com/8e/21/cb/25aaae13b0e165/US10880073.pdf'>https://patentimages.storage.googleapis.com/8e/21/cb/25aaae13b0e165/US10880073.pdf</a>
Bismuth papers: <a href='https://bismuthplatform.com/papers/'>https://bismuthplatform.com/papers/</a>