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1980s languages ↑
Late Cold War ↑
Fourth generation ↑

Explore languages for Sweden and for year 1981

LPL    ⊕ 1981     ⊕ Sweden   Logic Programming Language 
LPL0    ⊕ 1981     ⊕ Sweden    
UNIFORM    ⊕ 1981     ⊕ Sweden