You can search for any reference by title, author, date, editor, journal and publisher. Searching is case insensitive, and allows for only partial terms (e.g. seq with pickup both RNA-Seq and sequencing) matching. You can also use advanced queries that are detailed here.
Xue et al. (2007) "A modular network model of aging." Mol. Syst. Biol. 3:147 (PubMed)