The article doesn't mention papers so I am linking them here:
Original study [PDF]: http://proceedings.mlr.press/v81/buolamwini18a/buolamwini18a...
New study [PDF]: https://www.thetalkingmachines.com/sites/default/files/2019-...
Original study [PDF]: http://proceedings.mlr.press/v81/buolamwini18a/buolamwini18a...
New study [PDF]: https://www.thetalkingmachines.com/sites/default/files/2019-...