This study investigates a text excerpt containing 20,000 Russian letters of the alphabet, excluding $\Cprime$ and $\Cdprime$, from Pushkin's novel Eugene
Onegin–the entire first chapter and sixteen stanzas of the second.
1 Cf. Markov 1913a. Translated into German by Alexander Y. Nitussov, Lioudmila Voropai, and David Link; translated into English by Gloria Custance and David Link.