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.
Ruiu et al. (1995) "Apolipoprotein E allele frequencies in an Italian population: relation to age and lipid profile." Aging (Milano) 7(4):185-189 (PubMed)