资料来源 : Free On-Line Dictionary of Computing

SEM
     
        The semantic specification language for {COPS}.
     
        ["Metalanguages of the Compiler Production System COPS",
        J. Borowiec, in GI Fachgesprach "Compiler-Compiler", ed
        W. Henhapl, Tech Hochs Darmstadt 1978, pp. 122-159].