Preliminary Guide to the LISP Editor
Deutsch, P.
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http://www.softwarepreservation.org/projects/LISP/bbnlisp/W-21_LISP_Editor_Apr67.pdf/view
Abstract
The editor described here is implemented within the PDP-l and SDS 940 time-sharing LISP systems, but can be used with minor changes within any LISP system which includes the capabilities of LISP 1.5. It was begun by the author in 1965 and later extended by Bobrow and Teitelman at BBN.