Sheetlines articles available as PDF downloads :
Richard Oliver, ‘Some observations on collecting Ordnance Survey maps’, Sheetlines 52 (1998)
Richard Oliver, ‘C-roads on signposts and maps’, Sheetlines 59 (2000)
Richard Oliver, ‘Paul Baker: not quite as expected’, Sheetlines 71 (2004)
Richard Oliver, ‘Bench marks on postcards’, Sheetlines 74 (2005)
Richard Oliver, ‘A B C and M: roads numbers revealed [book review]’, Sheetlines 81 (2008)
Richard Oliver, ‘Landscape of London [review]’, Sheetlines 88 (2010)