E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The authorship of the work entitled De Imitatione Christi, has afforded as much controversy as the author of Letters of Junius. In 1604, a Spanish Jesuit discovered a manuscript copy by the Abbot John Gersen or Gesen; and since then three competitors have had angry and wordy defenders, viz. Thomas à Kempis, J. Charlier de Gerson, Chancellor of the University of Paris, and the Abbot Gersen. M. Malou gives his verdict in favour of the first.