PMIDs, ISBNs, all the input formats accepted by bibutils (BibTeX, COPAC, EndNote, ISI, Medline, RIS and MODS XML) passed directly or as an uploaded file or as a URL.
N. Weibel, A. Piper, and J. Hollan. Adjunct Proceedings of the 23Nd Annual ACM Symposium on User Interface Software and Technology, page 407--408. New York, NY, USA, ACM, (2010)Poster.
N. Weibel, A. Piper, and J. Hollan. Adjunct Proceedings of the 23Nd Annual ACM Symposium on User Interface Software and Technology, page 455--456. New York, NY, USA, ACM, (2010)Poster.