I came across a paper today:
Plink It: Paper-Based Links for Cross-Media Information Space Jurgen Steimle, Nadir Weibel, Simon Olberding, Max Muhlhauser, and James D. Hollan. Adjunct Proceedings of ACM Symposium on User Interface Software and Technology, 1969-1974, 2011. (PDF)
I am curious: what does Adjunct Proceedings mean? The paper's style and format looks quite different from Computer Science papers that I used to read. Could anyone explain this to me?