copyright notice for text files

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Copyright 1985-1994 by The Massachusetts Institute of Technology

All rights reserved.  These sample problem sets, or parts thereof, may
be reproduced for use with

Structure and Interpretation of Computer Programs
by Harold Abelson and Gerald Jay Sussman with Julie Sussman
MIT Press, 1985

provided such reproductions bear copyright notice, but may not be
reproduced in any form for any other purpose without permission of the
publisher.
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