Hatton, A. G., Collins, B., Schoville, B. J., & Wilkins, J. (2022). Ostrich eggshell beads from Ga-Mohana Hill North Rockshelter, southern Kalahari, and the implications for understanding social networks during Marine Isotope Stage 2. PLoS One, 17(6): e0268943. doi:10.1371/journal.pone.0268943.