This website provides access to NovaCTF for 3D-CTF correction for electron microscopy, as described in this publication:
Turoňová, B., Schur, F.K.M, Wan, W. and Briggs, J.A.G. Efficient 3D-CTF correction for cryo-electron tomography using NovaCTF improves subtomogram averaging resolution to 3.4 Å. Journal of Structural Biology (2017) doi:10.1016/j.jsb.2017.07.007
This software is available under the GPL v.3 for academic and non-commercial use.
Updated scripts may be available from Github.