The term Estuary English has been used to describe London pronunciations that are slightly closer to RP than cockney. The variety first came to public prominence in an article by David Rosewarne in the "Times Educational Supplement" in October 1984. Rosewarne argued that it may eventually replace Received Pronunciation in the south-east. The phonetician John C. Wells collected media references to Estuary English on a website. Writing in April 2013, Wells argued that research by Joanna Przedlacka "demolished the claim that EE was a single entity sweeping the southeast. Rather, we have various sound changes emanating from working-class London speech, each spreading independently".