He asked Smyslov to check for errors, and some minor corrections later, the book was published (1957) bearing both names, under the title Teoriya ladeynykh okonchaniy ("The theory of rook endings"), later published in English in 1971 under the title Rook Endings.
After a review by Smyslov, who made some minor corrections, the book was released in 1957 with both authors' names and the title "The theory of rook endings." It was then translated into English in 1971 and published as "Rook Endings."