For information on the church in Rome, how it started, of whom was it comprised, and what were
some of the issues in the church, use the following search queries in the Powell Library Discovery Catalog. Like this:

The "nu:" tells the search engine to look for items in call number field; "su:" tells the search engine is to look for the terms in the Subject field.
For articles search ATLA Religion, Christian Periodical Index and ProQuest Religion with these search queries:
Paul Between Synagogue and State
by
SS. Peter and Paul in Rome: an archaeological rhapsody
by
Oxford University Press
Table of Contents:
In Rome -- A rash resolve -- Ad Catacumbas -- Peter versus Paul -- Peter and Paul.