Wrong. There was one article. One. That's not harping. If there were more than one, then surely they would have been escavated by the denialists by now. Yet they cling to that Newsweek article as if it were referenced by everyone else, every day.
As for scientific articles, you've got access to Google Scholar right now, and guess what? It's got year delimiters. If you want to "teach the controversy", at least use readily available data. Here is a review article to get you started. It's a review article, an overview of the then current research on the subject, so you'll see that it actually has something to say about soot and aerosols:
Several studies in the past have concluded that if these aerosols were distributed uniformly over the earth they would increase the earth's overalll albedo by scattering sunlight and thereby cause a general cooling (Rasool & Schneider 1971, Yamamoto & Tanaka 1972, Bryson & Wendland 1975, Budyko 1977). The reason why this is almost surely not the case are summarized by Kellogg, Coakley & Grams (1975) (see also Kellogg 1977), and they are briefly restated. First, such industrial aerosols (and the same would apply to agricultural slash-and-burn smoke) do not remain airborne in the lower levels of the atmosphere for more than about five days on average (Moore, Poet & Martell 1973). That means they are a regional phenomenon and are limited for the most part to the land areas where they were created.
I'm a bit impressed that the referenced article by Yamamoto and Tanaka (1972) is also freely available on the interwebs, and can be found here. And even that one accepts global warming due to CO2, and the local variability of aerosols.