@article{unknown2021,
  title = {OpenStax: peer-reviewed, openly licensed college textbooks (all disciplines)},
  author = {},
  year = {2021},
  note = {Accessed via https://hub.teachingandlearning.ie/resource/openstax-peer-reviewed-openly-licensed-college-textbooks-all-disciplines/},
  abstract = {Peer-reviewed text books. Openly licensed. 100% free.},
}