Copyright (c) 2006-2016, Knut Reinert, FU Berlin
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
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      documentation and/or other materials provided with the distribution.
    * Neither the name of Knut Reinert or the FU Berlin nor the names of
      its contributors may be used to endorse or promote products derived
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