BBC Radio Ballad format - created by the Americans?

See this. I tried to get the full text but its restricted to academia (I hate that arrogance) or I have to pay £28.

http://www.tandfonline.com/doi/abs/10.1080/01439685.2015.1105513?journalCode=chjf20

"Furthermore, this article suggests that Lomax’s radio productions had a lasting effect on British media and culture, influencing both the British folk music revival of the 1950s–1960s and the popular ‘radio ballad’ form."

I thought Charles Parker created the Radio Ballad format, along with Ewan MacColl and Peggy Seeger?

Meanwhile if anyone from 'academia' can obtain the text of the full diatribe I'b be grateful. Thanks.