title: Vuvuzelas: Ex Africa semper aliquid novis--again?
authors.forename: J
authors.initials: J
authors.lastname: du T Zaaijman
mesh_terms: D003441:Crowding; D004059:Diffusion of Innovation; D006801:Humans; D012305:Riots / Q000517:prevention & control*; D012916:Soccer; D013019:South Africa