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We review the toroidal, cylindrical and planar black hole solutions inanti-de Sitter spacetimes and present their properties.Comment: LaTeX file (World Scientific macros), no figures, 16 pages, talk  given at the 10th Portuguese Meeting on Astronomy and Astrophysics, (Lisbon,  Portugal, 27-28 July 2000), in Astronomy and Astrophysics: Recent  Developments, Proceedings of the 10th A & A meeting, edited by J. P. S.  Lemos, A. Mourao, L. Teodoro, R. Ugoccioni, (World Scientific, 2001),  improved version, change of title, references adde

BLACK HOLES WITH TOROIDAL, CYLINDRICAL AND PLANAR HORIZONS IN ANTI-DE SITTER SPACETIMES IN GENERAL RELATIVITY AND THEIR PROPERTIES