. . . . . "Object lens : a 'spreadsheet' for cooperative work"@en . "Object lens: a \"spreadsheet\" for cooperative work"@en . . . . . . . . . . . . . "Object Lens : a \"spreadsheet\" for cooperative work"@en . . . . . . "Object lens : a \"spreadsheet\" for cooperative work" . "Cooperative work, object lens, a 'spreadsheet' for"@en . . . . . . . . .