Green Saharan DNA studies?

Are there any other studies which include ancient Green Sahara populations similar to the one below? This one deals with the modern Fulani and speculates that they have up to 30% Green Saharan admixture, but are there any other good studies that include information on the ancient Green Saharan group?

https://www.biorxiv.org/content/10.1101/2023.04.06.535569v1