db/conf/dl/NorthSP96.html http://doi.acm.org/10.1145/226931.226946 Chris North Ben Shneiderman Catherine Plaisant User Controlled Overviews of an Image Library: A Case Study of the Visible Human. 74-82 DL1996/P074.pdf 1996 conf/dl/96 Digital Libraries db/conf/dl/dl96.html#NorthSP96