Metallic alloys. J. Friedel in Il Nuovo Cimento 7:287 (1958).  What the paper says!?

This is a paper that summarizes many results on screening, and describes in particular so-called Fridel oscillations which are density oscillations around an impurity. Those interest us as our photon liquefaction oscillations appear to be related to that phenomenon.

This paper has the following comments on its, from its Author:

See also this https://gravityandlevity.wordpress.com/2009/06/02/friedel-oscillations-wherein-we-learn-that-the-electron-has-a-size/