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· Moduli Spaces of Gorenstein Quasi-Homogeneous Surface Singularities, with S. Natanzon, Russian Mathematical Surveys 66 (2011), 1009-1011.
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Theses
·
Ph.D.
Thesis (in German), Polyhedral Fundamental Domains of Discrete Subgroups of SU(1,1)~, University of Bonn, 2001,[pdf], published in Bonner Mathematische
Schriften Nr. 346.
·
Diploma
Thesis (in German), On Fundamental Domains of Discrete Subgroups of SU(1,1), University of Bonn, 1998, [pdf].