- History of the XIX centuries. Published by Ernest Laviss, Alfred Rambaud. Publication year 1905-06. 8 volumes. - A complete collection of Pushkin's edition Wolff. Year 1883. - A complete collection of Zhukovsky edition Wolff. Year 1883. - - Complete Belinsky edition Wolff. Year 1883. - Friedrich Ratzel - ethnology. Year 1902. The first volume