Maaß cusp forms for large eigenvalues. - Holger Then (Math. Comput., 2005)

Bounds and algorithms for the -Bessel function of imaginary order. - Andrew R. Booker; Andreas Strömbergsson; Holger Then (LMS J. Comput. Math., 2013)

On the distribution of eigenvalues of Maass forms on certain moonshine groups. - Lejla Smajlovic; Jay Jorgenson; Holger Then (Math. Comput., 2014)

Kronecker's Limit Formula, Holomorphic Modular Functions, and q-Expansions on Certain Arithmetic Groups. - Jay Jorgenson; Lejla Smajlovic; Holger Then (Exp. Math., 2016)

Certain aspects of holomorphic function theory on some genus-zero arithmetic groups. - Jay Jorgenson; Lejla Smajlovic; Holger Then (LMS J. Comput. Math., 2016)

On the Evaluation of Singular Invariants for Canonical Generators of Certain Genus One Arithmetic Groups. - Jay Jorgenson; Lejla Smajlovic; Holger Then (Exp. Math., 2020)

An approach for computing generators of class fields of imaginary quadratic number fields using the Schwarzian derivative. - Jay Jorgenson; Lejla Smajlovic; Holger Then (Math. Comput., 2022)