Enter Alexander Nikolaev, a pedagogue at the Moscow Conservatory. Alongside editors like Alexander Goldenweiser (a friend of Tolstoy and Scriabin), they synthesized the teachings of the great Russian virtuosos (Anton Rubinstein, Rachmaninoff, Prokofiev) into a graded curriculum. The result was the Russische Klavierschule (often credited to Nikolaev in the West, though a collective effort).
If you are looking for specific exercises, search for or "Lev Naumov exercises" (Naumov was a legendary teacher who continued the Neuhaus tradition). russische klavierschule pdf