• The Yagita invariant of symplectic groups of large rank,
  Busch, C.M., & Leary, I.J. Mediterr. J. Math. (2019) 16: 142.
  (Preprint: arXiv:1803.09561)
   
• The Yagita Invariant of Some Symplectic Groups,
  Mediterranean Journal of Mathematics, 10 (2013), 137 - 146
  DOI 10.1007/s00009-011-0166-0.
   
• Periodic p-torsion in the Farrell cohomology of some symplectic groups,
  L'Enseignement Mathématique, 54 (2008), 59 - 61
  and Monographie de L'Ens. Math. 40 (2008), 59 - 61
   
• Isomorphisms in the Farrell cohomology of Sp(p-1,Z[1/n]),
  New York Journal of Mathematics 14 (2008), 289 - 303
  (Preprint: On p-periodicity in the Farrell cohomology of Sp(p-1,Z[1/n]), arXiv math/0509693)
   
• Conjugacy classes of p-torsion in symplectic groups over S-integers,
  New York Journal of Mathematics 12 (2006), 169 - 182
  (Preprint: arXiv math/0509688)
   
• The Farrell cohomology of Sp(p-1,Z),
  Documenta Mathematica 7 (2002), 239 - 254
   
• Symplectic characteristic classes,
  L'Enseignement Mathématique, 47 (2001), 115 - 130
   

Article focussed on didactics of mathematics

• Das Vierfarbenproblem und verwandte Fragestellungen,
  26. Eichstätter Kolloquium zur Didaktik der Mathematik
  Preprint-Reihe Mathematik 2010 - 1 (2010), 101-1 - 101-11

Guido's book of conjectures

• Worry about primes in Farrell cohomology
  Guido's book of conjectures, a gift to Guido Mislin's retirement in June 2006

Habilitationsschrift

• Invariants in the cohomology of symplectic groups

Dissertation

• Symplectic characteristic classes and the Farrell cohomology of Sp(p-1,Z)
  • Thesis.ps
  • Thesis.pdf

Diplom

• Konstruktion hyperbolischer Mannigfaltigkeiten