db/conf/ht/AshmanBHSBN97.html Helen Ashman Venkatraman Balasubramanian Gary Hill John B. Smith Mark Bernstein Peter J. Nürnberg The WWW and Hypertext Research (Panel 3). 239 HT1997/P239.pdf 1997 conf/ht/97 Hypertext db/conf/ht/ht97.html#AshmanBHSBN97 http://doi.acm.org/10.1145/267437.270918