interrogative sentence
T. E. Yanko. THE ILLOCUTIONARY STRUCTURE OF THE RUSSIAN QUESTIONS: MEANING AND EXPRESSION
Trudy IRY RAS. 2024. № 2 (40), Pages. 231 - 242
E.Eh. Bazarov. ON PUNCTUATION OF INTERROGATIVE PARTICLES CHTO, CHTO LI
Trudy IRY RAS. 2021. № 3 (29), Pages. 227 - 237