Sutton, Geoffrey, "Francis, John Islay (b. 1924)", Concise Encyclopedia of the Original Literature of Esperanto 1887–2007, New-York City: Mondial, 2008, pp. 222–227 (esp. pp. 224–225), readable onlineArchived 11 July 2018 at the Wayback Machine; Declerck, Christian, "Kontraŭmilita literaturo en Esperanto" ["Anti-militarist literature in Esperanto"], La Gazeto 151:1 (January 2011), readable onlineArchived 5 October 2017 at the Wayback Machine; Johansson, Sten "La granda romano" ["The Big Novel"], Originala Literaturo Esperanta, readable onlineArchived 11 April 2016 at the Wayback Machine
Sutton, Geoffrey, "Francis, John Islay (b. 1924)", Concise Encyclopedia of the Original Literature of Esperanto 1887–2007, New-York City: Mondial, 2008, pp. 222–227 (esp. pp. 224–225), readable onlineArchived 11 July 2018 at the Wayback Machine; Declerck, Christian, "Kontraŭmilita literaturo en Esperanto" ["Anti-militarist literature in Esperanto"], La Gazeto 151:1 (January 2011), readable onlineArchived 5 October 2017 at the Wayback Machine; Johansson, Sten "La granda romano" ["The Big Novel"], Originala Literaturo Esperanta, readable onlineArchived 11 April 2016 at the Wayback Machine
Sutton, Geoffrey, "Francis, John Islay (b. 1924)", Concise Encyclopedia of the Original Literature of Esperanto 1887–2007, New-York City: Mondial, 2008, pp. 222–227 (esp. pp. 224–225), readable onlineArchived 11 July 2018 at the Wayback Machine; Declerck, Christian, "Kontraŭmilita literaturo en Esperanto" ["Anti-militarist literature in Esperanto"], La Gazeto 151:1 (January 2011), readable onlineArchived 5 October 2017 at the Wayback Machine; Johansson, Sten "La granda romano" ["The Big Novel"], Originala Literaturo Esperanta, readable onlineArchived 11 April 2016 at the Wayback Machine