NIFTY – Numerical Information Field Theory - A versatile PYTHON library for signal inference M. Selig, M. R. Bell, H. Junklewitz, N. Oppermann, M. Reinecke, M. Greiner, C. Pachajoa and T. A. Enßlin A&A, 554 (2013) A26 Published online: 30 May 2013 DOI: 10.1051/0004-6361/201321236