ftp.nice.ch/pub/next/science/mathematics/CRSolver.4.1.NI.b.tar.gz

CRSolver.app/
 
CRSolver.gvmodule → CRSolver.app/
 

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.