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.
Kondratov et al. (2006) "Dual role of the CLOCK/BMAL1 circadian complex in transcriptional regulation." FASEB J. 20(3):530-532 (PubMed)