The document is a bulletin from April 2013, focusing on various technical aspects and usage of the CLISP programming language. It includes information on commands, functions, and syntax, providing insights for developers. Additionally, it covers updates and enhancements that have been made to the language over time.

1. !
!"#$!%&#'() CliSP – Bulletin 20, Avril 2013
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2. !
!"#$!%&#'() CliSP – Bulletin 20, Avril 2013
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3. !
!"#$!%&#'()
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CliSP – Bulletin 20, Avril 2013
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4. !
!"#$!%&#'() CliSP – Bulletin 20, Avril 2013
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