Vedernikov was a prominent Russian pianist at the same time as Richter and Gilels - though sadly he was never really known outside of the Soviet Union. Personally, I think Vedernikov’s playing, along with Sofronitsky and Neuhaus were big influences for Richter’s own playing.
For me, Vedernikov seems like a more exciting version of Pollini. His playing is a bit detached, every note in its right place, but he doesn’t sound nearly as boring as Pollini tends to.
So anyway, I just ordered a crapload of his CDs (20 in total) from Japan, on the DENON Label.
Here’s his Beethoven C Min Variations, to give you a taste of his playing. I’ll post his Petrushka in a sec.