Access to Knowledge in Africa : The role of copyright - Armstrong, C.; Armstrong, Chris; Beer, J. de; Armstrong, Dr Chris , Dr; de Beer, J.; De Beer, Jeremy; Kawooya, D.; Kawooya, Dick; Musungu, Sisule; Prabhala, A.; Prabhala, Achal; Schonwetter, T.; et al. (Ottawa UCT Press, 2010)