https://archive.org/download/sim_state-magazine_1987-11_305/sim_state-magazine_1987-11_305.pdf IA contributor: Internet Archive IA digitizing sponsor: Kahle/Austin Foundation...
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identifier: sim_state-magazine_1988-02_308 https://archive.org/download/sim_state-magazine_1988-02_308/sim_state-magazine_1988-02_308.pdf IA contributor:...