Klüners J, Acciaro V. Computing Automorphisms of Abelian Number Fields. Mathematics of Computation. 1999;68(227):1179-1186.

Hilgert J, Krötz B. Representations, Characters, and Spherical Functions Associated to Causal Symmetric Spaces. J Funct Anal. 1999;169:357-390.

Hilgert J. Guillemin, V., E. Lerman, S. Sternberg. Symplectic fibration and Multiplicity Diagrams   (Cambridge University Press, 1996). JBer DMV. 1999;101.

Hilgert J, Neumann  A, Ólafsson G. A Conjugacy Theorem for Symmetric Spaces. Math Annalen. 1999;313:785-791.

Hilgert J, Krötz B. Weighted Bergman Spaces Associated to Causal Symmetric Spaces. Manus Math. 1999;99:151-180.

Hilgert J, Neeb K-H. Positive Definite Spherical Functions on Olshanskii Domains. Trans AMS. 1999;352:1345-1380.

Rösler M. An uncertainty principle for Hankel transforms. Proceedings of the American Mathematical Society. 1999;127(1):183–194.

Dellnitz M, Junge O. An adaptive subdivision technique for the approximation of attractors and invariant measures. Computing and Visualization in Science. 1998:63-68. doi:10.1007/s007910050006

Rösler M, Voit M. Biorthogonal polynomials associated with reflection groups and a formula of Macdonald. Journal of Computational and Applied Mathematics. 1998;99(1-2):337-351. doi:10.1016/s0377-0427(98)00168-x

Rösler M, Voit M. Markov Processes Related with Dunkl Operators. Advances in Applied Mathematics. 1998;21(4):575-643. doi:10.1006/aama.1998.0609

Burban I, Duma W. Projective transformations of a plane. U sviti Mathematyky. 1998;4(2).

Burban I, Duma W. Projective transformations of a plane and three-dimensional space. U sviti Mathematyky. 1998;4(4).

Burban I. Rational parameterization of algebraic curves. U sviti Mathematyky. 1998;4(1).

Hilgert J, Neeb K-H. Invariant Cones in Real Representations. In: Hilgert J, Lawson JD, Neeb K-H, Vinberg EB, eds. Positivity in Lie Theory: Open Problems. De Gruyter; 1998.

Hilgert J, Bertram W. Reproducing Kernels on Vector Bundles. In: Doebner HD, Dobrev V, Hilgert J, eds. Lie Theory and Its Applications in Physics. World Scientific; 1998.

Hilgert J, Bertram W. Hardy Spaces and Analytic Continuation of Bergman Spaces. Bull Math Soc Francaise. 1998;126:435-482.

Hilgert J, Neeb K-H. Poisson Lie Groups and Non-Linear Convexity Theorems. Math Nachr. 1998;191:153-187.

Hilgert J, Doebner H-D, Dobrev VK, eds. Lie Theory and Its Applcations in Physics II. World Scientific; 1998.

Hilgert J, Lawson JD, Neeb K-H, Vinberg EB, eds. Positivity in Lie Theory. De Gruyter, ; 1998.

Hesse K. Wachstumsverhalten von Lösungen der $verline\'70artial$-Gleichung auf Pseudo-Siegel-Gebieten.; 1998.