The story does make a lot of references to previous work done, and even has a quote about how this method seems expensive and no better than existing methods.

The story does make a lot of references to previous work done, and even has a quote about how this method seems expensive and no better than existing methods. It looks like the paper (https://www.nature.com/articles/nature25476 https://www.nature.com/articles/nature25476) provides the detail you are looking for.