NIFTY – Numerical Information Field Theory - A versatile PYTHON library for signal inferenceM. Selig, M. R. Bell, H. Junklewitz, N. Oppermann, M. Reinecke, M. Greiner, C. Pachajoa and T. A. EnßlinA&A, 554 (2013) A26DOI: https://doi.org/10.1051/0004-6361/201321236