In the Putin era, other oligarchs have come under fire for various alleged illegal activities, particularly tax evasion in the businesses they acquired.

Potanin, Malkin and Fridman are the only ones of the list to have made it to the Putin era.

She spoke out on human-rights questions around the world and, above all, the betrayals of the Putin era in Russia.

Before the Putin era, in 1998, over 60% of industrial turnover in Russia was based on barter and various monetary surrogates.

The Putin era has not in general been conducive to great literature.

The irony is that a "Putin era" would mean an uncompetitive, economically weakened Russia - no threat to the West.

The authoritarian features of the Putin era, however, are not like those of either tsarist or Soviet times.

In the Putin era Russia is led by people for whom the Cold War was their life and work.

Russian television media in the Putin era have been criticized for the pro-government bias.

The Economist described the filibuster as "the most striking act of parliamentary defiance in the Putin era".