at senescence.info
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.
DeCaprio et al. (1989) "The product of the retinoblastoma susceptibility gene has properties of a cell cycle regulatory element." Cell 58(6):1085-1095 (PubMed)