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This is a major feature release which introduces the new [http://www.nmr-relax.com/manual/GUI.html graphical user interface] written by [https://gna.org/users/michaelbieri Michael Bieri ] [Bieri et al, 2011]. This GUI provides easy access to a sub-set of relax's features - the R<sub>1</sub> and R<sub>2</sub> relaxation rate curve-fitting, NOE calculations, and the fully automatic model-free analysis of the dauvergne_protocol module [d'Auvergne and Gooley, 2007][d'Auvergne and Gooley, 2008].
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<section begin=features/>
* The addition of [https://gna.org/users/michaelbieri Michael Bieri's ] graphical user interface - relaxGUI [Bieri et al, 2011].
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