dictionary.
E.Eh. Bazarov. ON PUNCTUATION OF INTERROGATIVE PARTICLES CHTO, CHTO LI
Trudy IRY RAS. 2021. № 3 (29), Pages. 227 - 237
T. P. Viazovik. THE LEXICAL STATUS OF COMPOSITE PRONOUNS AND THEIR REPRESENTATION IN THE DICTIONARY
Trudy IRY RAS. 2014. № 2 (2), Pages. 323 - 333