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.
Sharma et al. (2009) "The aging immune system and its relationship to the development of chronic obstructive pulmonary disease." Proc Am Thorac Soc 6(7):573-580 (PubMed)