Non-proprietary DATR implementations

susxdatr:

Various Prologs; versions from 1989 (R. Evans)

minidatr:

Prolog inference machine core; 1993 (D. Gibbon)

node:

Sicstus Prolog, UNIX; 1993 (D. Gibbon)

ddatr:

Scheme, DOS; 1989 (D. Gibbon)

mud:

minimal UNIX DATR, DATR as UNIX filter; 1995 (D. Gibbon)

qdatr:

Arity Prolog, DOS; Sicstus Prolog, UNIX; versions from 1991 (J. Kilbury)