Flexible timeline user interface using constraints.

Kazutaka Kurihara David Vronay Takeo Igarashi Flexible timeline user interface using constraints. 1581-1584 2005 conf/chi/2005a CHI Extended Abstracts http://doi.acm.org/10.1145/1056808.1056971 db/conf/chi/chi2005a.html#KuriharaVI05