Nickel oxide is a material that can learn like animals, S. Ramanathan, The Conversation, December 2021
https://theconversation.com/nickel-oxide-is-a-material-that-can-learn-like-animals-and-could-help-further-artificial-intelligence-research-173048
https://theconversation.com/nickel-oxide-is-a-material-that-can-learn-like-animals-and-could-help-further-artificial-intelligence-research-173048