@article{CG_2011___56_301_0,
     author = {H\'ala, Tom\'a\v{s}},
     title = {Marking proof-sheets in publishing practice and its implementation in the {TeX~system}},
     journal = {Cahiers GUTenberg},
     pages = {301--308},
     publisher = {Association GUTenberg},
     number = {56},
     year = {2011},
     language = {en},
     url = {http://archive.numdam.org/item/CG_2011___56_301_0/}
}