| Newsletter 226 January 1990 | | New |
| Newsletter 227 February 1990 | | New |
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| Newsletter 237 December 1990 | | New |
| Newsletter 238 January 1991 | | New |
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| Newsletter 250 January 1992 | | New |
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| Newsletter 274 January 1994 | | New |
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| Newsletter 284 November 1994 | | New |
| Newsletter 285 December 1994 | | New |