- Michael Goulder. St. Paul versus St. Peter: A Tale of Two Missions. Westminster John Knox, 1994.
- Gerd Ludemann. Heretics: The Other Side of Early Christianity. Westminster John Knox, 1996. [chapter 3]
- Hans-Joachim Schoeps, Jewish Christianity: Factional Disputes in the Early Church. Fortress Press, 1969. One of the few books specifically on the subject over the last 40 years. Surprisingly readable, but long out of print and expensive to get hold of (I picked up a copy second hand for a modest six bucks - my lucky day - but I've seen it going for well over $200.)
- Matt Jackson-McCabe (ed.) Jewish Christianity Reconsidered: Rethinking Ancient Groups & Texts. Fortress Press, 2007. For a more general and recent overview: it's a mixed bag though, drawing on a variety of views from several scholars.
- Hans Kung, Christianity: Essence, History, & Future. Continuum, 2004. [pp. 102-109]
Before going on to the major suggestion Kung makes, it may be worth noting that he is one of the most widely read contemporary Roman Catholic theologians, has held a professorship at Tubingen for many years, and was a leading architect of Vatican II. With the conservative papacies that followed on from John XXIII Kung has become one of that church's most incisive critics, while remaining within. In other words, we are a long way from either Dugger & Dodd or Hoeh.
So much for preamble. Next time we'll move to the crux of the matter.