The abstract machine for bootstrapping ML/1, developed by P.J. Brown of the University of Kent at Canterbury.
["Macro Processors and Techniques for Portable Software", P.J. Brown, published by Wiley, ISBN 0.471.11005.1].
[Mentioned in "Machine Oriented Higher Level Languages", W. van der Poel, N-H 1974, p. 271].
[What does LOWL stand for?]