On the stability of real exponential polynomials with interval-valued delays. - Fritz G. Boese (Multidimens. Syst. Signal Process., 1994)

An auxiliary theorem for stability analysis in the presence of interval-valued parameters. - Fritz G. Boese (Multidimens. Syst. Signal Process., 1994)

Enclosure of the Zero Set of Polynomials in Several Complex Variables. - Fritz G. Boese; Wolfram J. Luther (Multidimens. Syst. Signal Process., 2001)

Enclosure of the Zero Set of Multivariate Exponential Interval Polynomials. - Fritz G. Boese; Wolfram J. Luther (Numer. Algorithms, 2004)