1 LO GATTO, ETTORE. Storia della letteratura russa. Third revised and expanded edition. Florence: Sansoni, 482—84, 493.
Reprint of 1942.1 in an expanded edition (the section on Ivanov has one brief addition on Zinov’eva-Annibal). Further scattered references to Ivanov,
dealing with his interpretation of Pushkin and Dostoevskii, can be traced through the index.