Sovremennai︠a︡ russkai︠a︡ punktuat︠s︡ii︠a︡ : sistema i ee funkt︠s︡ionirovanieShvart︠s︡kopf, B. S.Karaulov, I︠U︡. N.RussianBook1988Moskva : Nauka, 1988.Russian language—PunctuationBook9785020108738