Notes
- Hoagland , J . 1991 . International Herald Tribune , 5 March
- 1991 . International Herald Tribune , 11 March
- 1990 . New York Daily News , 29 September
- Safire , W . 1991 . International Herald Tribune , 26 March
- 1991 . International Herald Tribune , 11 March
- 1991 . International Herald Tribune , 25 March
- 1991 . International Herald Tribune , 28 March
- 1991 . International Herald Tribune , 2 May
- 1991 . International Herald Tribune , 6 May
- 1991 . International Herald Tribune , 30 May
- 1991 . International Herald Tribune , 12 April
- 1991 . Paris Journal de Dimanche , 3 February
- 1991 . International Herald Tribune , 17 January
- 1991 . Daily Telegraph , 20 January
- 1991 . International Herald Tribune , 25–26 May
- 1991 . International Herald Tribune , 1 February
- 1991 . International Herald Tribune , 7 May
- 1991 . International Herald Tribune , 11 February
- Safire , W . 1991 . International Herald Tribune , 26 February
- Custers , P . 1991 . Economic and Political Weekly , 5–12 January
- 1991 . El Pais , 9 June