This repo contains a copy of the sources found at https://ivi.fnwi.uva.nl/tcs/QRgroup/QRM/software/, ported to SWI-Prolog 8.
Note that porting just means fixing a few problems that prevented loading. The port was done on SWI-Prolog 8.1.28, but most likely applies to all versions of SWI-Prolog starting from 8.0.
Note: the functionality of this version has not been tested.