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.
Naumova et al. (2004) "Immunological markers contributing to successful aging in Bulgarians." Exp. Gerontol. 39(4):637-644 (PubMed)