In my country (I live in Russia) the government puts in place some reforms in Education, and, in particular, the possibility for a person to have a position at a university now depends on his bibliometric rates. This causes numerous debates among academics because there is a difference between this bibliometry and the real value of a scientific research.

Since in the West this way to estimate the success of an academic is not new, I believe there are many investigations in this field, and, in particular, I think there must be some statistics on how the modern bibliometry evaluates the research of old scientists *during their lives*. Did anybody hear someting about this?

In other words,

Does anybody know if there exist statistical researches on bibliometric rates (like h-index) of old scientists (like Karl Weierstrass) during their lives?

(I stress this “during their lives” since this is important in the debates I am talking about.)

I am a mathematician, that is why I am intrested first of all in the statistics on mathematics, but this is not necessary, I would appreciate any references. Of course, the more data such a statistic would contain, the better.