McKinney 2007, p. 71; Peeters 2012, p. 337. McKinney, Mark K. (2007). "Georges Remi's Legacy: Between Half-Hidden History, Modern Myth, and Mass Marketing". International Journal of Comic Art. 9 (2): 68–80. ISSN1531-6793. Peeters, Benoît (2012) [2002]. Hergé: Son of Tintin. Tina A. Kover (translator). Baltimore, Maryland: Johns Hopkins University Press. ISBN978-1-4214-0454-7.
McKinney 2007, p. 71; Peeters 2012, p. 337. McKinney, Mark K. (2007). "Georges Remi's Legacy: Between Half-Hidden History, Modern Myth, and Mass Marketing". International Journal of Comic Art. 9 (2): 68–80. ISSN1531-6793. Peeters, Benoît (2012) [2002]. Hergé: Son of Tintin. Tina A. Kover (translator). Baltimore, Maryland: Johns Hopkins University Press. ISBN978-1-4214-0454-7.