Francisco J. González-Castaño Luis E. Anido-Rifón Javier Vales-Alonso Rafael Asorey-Cacheda Enrique Costa-Montenegro David Conde-Lagoa Hierarchical Atomic Navigation for Small Display Devices. 2001 WWW Posters http://www10.org/cdrom/posters/1015.pdf db/conf/www/www2001p.html#Gonzalez-CastanoAVACC01