The blue social bookmark and publication sharing system.
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3d mind mapper allows you to build mind maps by the most natural way for humans - to 3-dimensional world. http://www.3dmindmapper.com/ If you are new to the ...
BibSonomy is offered by the KDE group of the University of Kassel, the DMIR group of the University of Würzburg, and the L3S Research Center, Germany.