Source : Free On-Line Dictionary of Computing

LYaPAS
     
        (Russian acronym for "Logical Language for the Representation
        of Synthesis Algorithms")
     
        A language for the {URAL-1} computer.  It was coded in
        {octal}!
     
        ["LYaPAS: A Programming Language for Logic and Coding
        Algorithms", M.A. Gavrilov et al eds, Academic Press 1969].
     
        (1995-02-16)