Citations

I would propse to also explain how to cite NIFTy with the help of BibTeX. To be honest the How-to-cite instruction is not too helpful after all if one uses BibTeX.

In the LaTeX document class \documentclass[conference]{IEEEtran} the bibliography entry looks like this when using my proposed BibTeX entry:

Martin Reinecke, Theo Steininger. NIFTy – Numerical Information Field TheorY. Version nifty4. Feb. 5, 2018. URL : https://gitlab.mpcdf.mpg.de/ift/NIFTy.

@ensslint, is this okay? Shall we change something?

docs/source/citations.rst

+NIFTy-related publications
+==========================
+
+::
+
+    @software{nifty,
+      author = {{Martin Reinecke, Theo Steininger, Marco Selig}},
+      title = {NIFTy -- Numerical Information Field TheorY},
+      url = {https://gitlab.mpcdf.mpg.de/ift/NIFTy},
+      version = {nifty4},
+      date = {2018-04-05},
+    }
+
+    @ARTICLE{2013A&A...554A..26S,
+      author = {{Selig}, M. and {Bell}, M.~R. and {Junklewitz}, H. and {Oppermann}, N. and {Reinecke}, M. and {Greiner}, M. and {Pachajoa}, C. and {En{\ss}lin}, T.~A.},
+      title = "{NIFTY - Numerical Information Field Theory. A versatile PYTHON library for signal inference}",
+      journal = {\aap},
+      archivePrefix = "arXiv",
+      eprint = {1301.4499},
+      primaryClass = "astro-ph.IM",
+      keywords = {methods: data analysis, methods: numerical, methods: statistical, techniques: image processing},
+      year = 2013,
+      month = jun,
+      volume = 554,
+      eid = {A26},
+      pages = {A26},
+      doi = {10.1051/0004-6361/201321236},
+      adsurl = {http://cdsads.u-strasbg.fr/abs/2013A%26A...554A..26S},
+      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+    }
+
+    @ARTICLE{2017arXiv170801073S,
+      author = {{Steininger}, T. and {Dixit}, J. and {Frank}, P. and {Greiner}, M. and {Hutschenreuter}, S. and {Knollm{\"u}ller}, J. and {Leike}, R. and {Porqueres}, N. and {Pumpe}, D. and {Reinecke}, M. and {{\v S}raml}, M. and {Varady}, C. and {En{\ss}lin}, T.},
+      title = "{NIFTy 3 - Numerical Information Field Theory - A Python framework for multicomponent signal inference on HPC clusters}",
+      journal = {ArXiv e-prints},
+      archivePrefix = "arXiv",
+      eprint = {1708.01073},
+      primaryClass = "astro-ph.IM",
+      keywords = {Astrophysics - Instrumentation and Methods for Astrophysics},
+      year = 2017,
+      month = aug,
+      adsurl = {http://cdsads.u-strasbg.fr/abs/2017arXiv170801073S},
+      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+    }