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.
Friedman et al. (2005) "Social relationships, sleep quality, and interleukin-6 in aging women." Proc. Natl. Acad. Sci. U.S.A. 102(51):18757-18762 (PubMed)