Was there a shift from Levallois to Still Bay point knapping at Hollow Rock Shelter, South Africa?

Högberg, Anders and Marlize Lombard. 2022. Was there a shift from Levallois to Still Bay point knapping at Hollow Rock Shelter, South Africa? Azania: Archaeological Research in Africa, 57(1), 5–36. https://doi.org/10.1080/0067270X.2022.2050558