Source : Free On-Line Dictionary of Computing

microPLANNER
     
        A subset of {PLANNER}, implemented in {Lisp} by {Gerald
        Sussman} et al at {MIT}.  Its important features were
        goal-oriented, pattern-directed procedure invocation, an
        embedded knowledge base, and automatic {backtracking}.
     
        microPLANNER was superseded by {Conniver}.
     
        ["microPLANNER Reference Manual", G.J. Sussman et al, AI Memo
        203, MIT AI Lab, 1970].
     
        (1995-01-10)