@book{o2016weapons,
title={Weapons of Math Destruction: How Big Data Increases Inequality and Threatens Democracy},
author={O'Neil, C.},
isbn={9780553418828},
lccn={2016016487},
url={https://books.google.co.cr/books?id=NgEwCwAAQBAJ},
year={2016},
publisher={Crown}
}