A Probabilistic Zero-Test for Expressions Involving Roots of Rational Numbers
J. Blömer, in: Algorithms — ESA’ 98, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 151–162.

Geometric Searching in Walkthrough Animations with Weak Spanners in Real Time
M. Fischer, T. Lukovszki, M. Ziegler, in: Algorithms — ESA’ 98, Berlin, Heidelberg, 1998.