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%0 Book Section
%A Koecher, Max
%A Krieg, Aloys
%T Geometry in the upper half-plane and the action of the modular group
%C Berlin, Heidelberg
%I Springer Berlin Heidelberg
%M RWTH-2026-02726
%B Universitext
%P 109-152
%D 2025
%< Elliptic Functions and Modular Forms / Max Koecher, Aloys Krieg
%F PUB:(DE-HGF)7
%9 Contribution to a book
%R 10.1007/978-3-662-71224-5_2
%U https://publications.rwth-aachen.de/record/1030034