.. _uncertainties: http://pythonhosted.org/uncertainties/
.. _scikit-image: http://scikit-image.org
.. _scikit-learn: http://scikit-learn.org
.. _GammaLib: http://gammalib.sourceforge.net
.. _ctools: http://cta.irap.omp.eu/ctools
.. _Astropy: http://astropy.org
.. _imageutils: http://imageutils.readthedocs.org
.. _reproject: http://reproject.readthedocs.org
.. _photutils: http://photutils.readthedocs.org
.. _wcsaxes: https://github.com/astrofrog/wcsaxes
.. _gammafit: http://gammafit.readthedocs.org
.. _ROOT: http://root.cern.ch/
.. _rootpy: http://rootpy.org
.. _Kapteyn: http://www.astro.rug.nl/software/kapteyn/
.. _Sherpa: http://cxc.cfa.harvard.edu/sherpa/
.. _CIAO: http://cxc.cfa.harvard.edu/ciao/
.. _imfun: http://code.google.com/p/image-funcut/
.. _aplpy: http://aplpy.github.io
.. _matplotlib: http://matplotlib.org
.. _pandas: http://pandas.pydata.org
.. _pip: http://www.pip-installer.org/
.. _conda: http://conda.pydata.org/

.. _Gammapy mailing list: http://groups.google.com/group/gammapy
.. _Gammapy Github page: https://github.com/gammapy/gammapy
.. _Gammapy documentation: https://gammapy.readthedocs.org/
.. _Gammapy project summary on Ohloh: https://www.ohloh.net/p/gammapy
.. _Gammapy page on PyPI: https://pypi.python.org/pypi/gammapy 
