JEWS & the MIDDLE AGES - What would be a good book about the Jewish-Christian debates of the middle ages?

I have read that in something like the 11th or 12th century was the first time there were formalzed debates between Jewish and Christian intellectuals contasting their theologies. What are example of good books and authors about this subject?

Thx in advance.JEWS %26amp; the MIDDLE AGES - What would be a good book about the Jewish-Christian debates of the middle ages?
The Jewish-Christian Debate in the High Middle Ages: A Critical Edition of the Nizzahon Vetus