Informationen auf Robert Galbraiths offizieller Website. Abgerufen am 19. Juli 2013: „At the point I was ‘outed’, Robert had sold 8500 English language copies across all formats (hardback, eBook, library and audiobook) and received two offers from television production companies.“
The JK Rowling story. Before Harry Potter, before the novels, before the films, before the millions and millions of pounds, there was a little girl who liked to play witches and wizards. In: scotsman.com. 16. Juni 2003, abgerufen am 9. März 2024 (englisch).