Persson 2020 published online ahead of print. It now appears in Language in Society issue 49(4) and has been updated to include the page number for a quotation taken from another article in the same issue.
The updated passage appears on page 599: “This often involves raising problems of expectation with what the previous speaker has said, for example ‘because it reports an extraordinary or remarkable fact, or because it presents an inappropriate or questionable view’ (Rossi, introduction, this issue, 512).”