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.
Rolandi et al. (1987) "Somatostatin in the elderly: diurnal plasma profile and secretory response to meal stimulation." Gerontology 33(5):296-301 (PubMed)