PyFAI, a versatile library for azimuthal regrouping, J Kieffer & D Karkoulis; Journal of Physics: Conference Series (2013) 425 (20), pp202012
PyFAI: a Python library for high performance azimuthal integration on GPU J Kieffer & J.P. Wright; Powder Diffraction (2013) 28 (S2), pp339-350
Jérôme Kieffer, Giannis Ashiotis PROC. OF THE 7th EUR. CONF. ON PYTHON IN SCIENCE (EUROSCIPY 2014)
The fast azimuthal integration Python library: pyFAI J. Kieffer, G. Ashiotis, A. Deschildre, Z. Nawaz, J. P. Wright, D. Karkoulis, F. E. Picca Journal of Applied Crystallography (2015) 48 (2), 510-519
The later publication provides a nice overview of the features introduced in version 0.11 and further developed in v0.12, v0.13 & v0.14 and should be the one cited in publications using pyFAI (or one of the graphical application on top of it). There are already 93 publication referring to pyFAI, some of them in the most prestigious scientific journals (Nature, PNAS, ...).