Hmm, looks like https://www.softwarepreservation.org/projects hasn't been submitted to HN in some years.
[0] Parallel Lisps / SPUR Lisp https://www.softwarepreservation.org/projects/LISP/parallel#... [1] SPUR Lisp: Design and Implementation https://www2.eecs.berkeley.edu/Pubs/TechRpts/1987/CSD-87-373... [2] Features for Multiprocessing in SPUR Lisp http://www2.eecs.berkeley.edu/Pubs/TechRpts/1988/CSD-88-406.... [3] Implementation of Multiprocessing SPUR Lisp http://www2.eecs.berkeley.edu/Pubs/TechRpts/1988/CSD-88-459....
Design Decisions in SPUR: https://pages.cs.wisc.edu/~markhill/papers/computer86_spur.p...
SPUR: A VLSI Multiprocessor Workstation: https://www2.eecs.berkeley.edu/Pubs/TechRpts/1986/CSD-86-273...
Multiprocessing extensions in Spur Lisp: https://ieeexplore.ieee.org/document/31651