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+-- Copyright 2013 by Till Tantau
+--
+-- This file may be distributed an/or modified
+--
+-- 1. under the LaTeX Project Public License and/or
+-- 2. under the GNU Public License
+--
+-- See the file doc/generic/pgf/licenses/LICENSE for more information
+
+-- @release $Header: /cvsroot/pgf/pgf/generic/pgf/graphdrawing/lua/pgf/gd/doc/ogdf/layered/DfsAcyclicSubgraph.lua,v 1.1 2013/03/05 23:44:30 tantau Exp $
+
+
+local key = require 'pgf.gd.doc'.key
+local documentation = require 'pgf.gd.doc'.documentation
+local summary = require 'pgf.gd.doc'.summary
+local example = require 'pgf.gd.doc'.example
+
+
+
+--------------------------------------------------------------------
+key "DfsAcyclicSubgraph"
+summary "DFS-based algorithm for computing a maximal acyclic subgraph."
+documentation
+[[
+The algorithm simply removes all DFS-backedges and works in linear-time.
+]]
+--------------------------------------------------------------------