. . . "Machine recording of textual information during the publication of scientific journals : report on work done on National Science Foundation contract 305 during period January 1 to November 15, 1963"@en . . . . . . . . . . . "Automatic indexing"@en . . . . "Periodicals"@en . . . . "Machine recording of textual information during the publication of scientific journals : Report of work done on National Science Foundation Contract 305, during period Jan. 1, 1963 to May 30, 1965"@en . . . "Machine recording of textual information during the publication of scientific journals : report on work done on National Science Foundation contract 305, during period January 1, 1963 to May 30, 1965"@en . . "Machine recording of textual information during the publication of scientific journals"@en .