Ridgway, Tyronne M, Stewart, Barbara A, Branch, George M, Hodgson, Alan N. Morphological and genetic differentiation of Patella granularis (Gastropoda: Patellidae): recognition of two sibling species along the coast of southern Africa. 1998.

Harris, Jean M, Branch, George M, Elliot, Bridget L, Currie, Bronwen, Dye, Arthur H, McQuaid, Christopher D, Tomalin, Bruce J, Velasquez, Claudio. Spatial and temporal variability in recruitment of intertidal mussels around the coast of southern Africa. 1998.

Mead, A, Griffiths, Charles L, Branch, George M, McQuaid, Christopher D, Blamey, L K, Bolton, J J, Anderson, R J, Dufois, Francois, Rouault, M, Froneman, P William, Whitfield, Alan K, Harris, L R, Nel, R, Pillay, D, Adams, Janine B. Human-mediated drivers of change—impacts on coastal ecosystems and marine biota of South Africa. 2013.