Analysis of information sources in references of the Wikipedia article "Roseanna" in Italian language version.
«[...]she and Wahloo had never heard of McBain, but that a review of their second or third Beck novel compared it to McBain and Hillary Waugh. The Swedish authors then read these books and as a result urged their publisher to buy the rights. He did, and asked them to translate them. Sjowall and Wahloo translated a dozen of the 87th Precinct novels and so became cast as McBain's followers and imitators.»