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.
He requested Smyslov to review for errors, and after some minor adjustments, the book was published (1957) bearing both names, under the title "The theory of rook endings," later published in English in 1971 as "Rook Endings."