Editing Appendix/Ramblings/CCGF (section)

===Physical Review B===
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<font color="red">[2014]</font> ''Spin and impurity effects on flux-periodic oscillations in core-shell nanowires'', by T. O. Rosdahl, A. Manolescu, &amp; V. Gudmundsson, [https://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.035421 Phys. Rev. B 90, 035421] &#8212; The key reference to CCGF appears in the paragraph associated with their equation (30); the authors state that numerical evaluation of the relevant set of Legendre functions was carried out using a code provided in [https://www.sciencedirect.com/science/article/pii/S0010465599004282?via%3Dihub J. Segura &amp; A. Gil, Comput. Phys. Commun. 124, 104, (2000)]
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<font color="red">[2011]</font> ''Transverse domain wall propagation in modulated cylindrical nanostructure and possible geometric control'', by S. Allende, &amp; R. Arias, [https://journals.aps.org/prb/abstract/10.1103/PhysRevB.83.174452 Phys. Rev. B 83, 174452] 
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<font color="red">[2005]</font> ''Ground-state densities and pair correlation functions in parabolic quantum dots'', by M. Gattobigio, P. Capuzzi, M. Polini, R. Asgari, &amp; M. P. Tosi, [https://journals.aps.org/prb/abstract/10.1103/PhysRevB.72.045306 Phys. Rev. B 72, 045306] 
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