https:// www.archives.gov/files/iwg/reports/hitlers-shadow.pdf
http:// www.nonprofitfacts.com/CA/The-Brin-Wojcicki-Foundation.html
http:// allthingsd.com/20121211/23andme-raises-50-million-in-new-funding-adding-yuri-milner-as-investor/
https:// www.lifewire.com/google-x-secret-lab-1616267