Text this: Trudy VII Obʺedinennykh nauchnykh chteniĭ po kosmonavtike, posv︠i︡ashchennykh pam︠i︡ati vyda︠i︡ushchikhs︠i︡a sovetskikh uchenykh--pionerov osvoeni︠i︡a kosmicheskogo prostranstva :