[37] Rachel Alexander, "Astroturf 'Outrage Machine' of Troll in pagament, on social media to contrast negative messages to Hillary Clinton," The Stream, 9 October 2017.
[37] Rachel Alexander, " Astroturf 'Outrage Machine" di Troll a pagamento, inonda i social media per contrastare le notizie negative su Hillary Clinton ", The Stream, 9 ottobre 2017..