4 June 1999 | Publisher: National Legislative Bodies | Document type: National Legislation
24 December 1998 | Publisher: National Legislative Bodies | Document type: National Legislation
20 June 1997 | Publisher: National Legislative Bodies | Document type: National Legislation
24 July 1993 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements
19 February 1992 | Publisher: Belgium: Conseil d'État | Document type: Case Law
29 May 1990 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements
30 June 1989 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements