James Mosley, Comments on Typophile thread, su Typophile (archived). URL consultato il 16 dicembre 2016 (archiviato dall'url originale il 13 ottobre 2011).
«The consensus appears to be that not only the wrong-fount a in the cases at Antwerp but also the italic that Monotype adapted for their Plantin (which can be seen on that first page of the 1905 specimen) may be the work of Johann Michael Schmidt (died 1750), also known as J. M. Smit or Smid.»