. . . . . "The effects of different kinds and intensitites of background \"noise\" on the legibility of printed text and numerals"@en . . . "The effects of different kinds and intensities of background 'Noise' on the legibility of printed text and numerals"@en . . . . . . "The effects of different kinds and intensities of background \"noise\" on the legibility of printed text and numerals"@en . . . "The effects of different kinds and intensities of background noise on the legibility of printed text and numerals" . . . . . . . .