1806 Battle of Blaauwberg: Musket Ball Analysis
https://www.researchgate.net/profile/Louisa_Hutten/publication/322854646_1806_Battle_of_Blaauwberg_Musket_ball_analysis_Introduction_and_Objective/links/5a72dae0a6fdcc53fe1324b4/1806-Battle-of-Blaauwberg-Musket-ball-analysis-Introduction-and-Objective.pdf