Sbornik stateĭ v chestʹ akademika Aleksei︠a︡ Ivanovicha Sobolevskogo izdannyi ko dni︠u︡ 70-letii︠a︡ so dni︠a︡ ego rozhdenii︠a︡ /
Perett︠s︡, Vladimir Nikolaevich.
The Hague :  Europe printing, 
1965.
Reprint of the Leningrad, 1928 edition.
Sobolevskiĭ, Alekseĭ Ivanovich.
Slavic literature.
Slavic languages.