[plt-scheme] help wanted

From: Juergen Dabel (j.dabel at t-online.de)
Date: Thu May 25 04:13:58 EDT 2006

I am new to Scheme

I am looking for the source code of "up and down" as used so in  
Structure and Interpretation of Classical Mechanics by Sussman and  

Thank you

Juergen Dabel
Fruehlingstr. 11 A
86529 Schrobenhausen
j.dabel at t-online.de

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