Sources Consulted for Factual Information about Hôtel Silence

• "Lyla Films" https://lylafilms.com/. [official site]
• "Québec Cinéma : Films A-Z" Québec Cinéma. https://quebeccinema.ca/films-a-z.
• "Swiss Films" https://www.swissfilms.ch/. [German / English / French]