Circle packing in the hyperbolic plane. Bowen, Lewis (2000) Mathematical Physics Electronic Journal [electronic only]
Classification of hyperbolic dodecahedron tilings of maximally face-transitive motion groups. (Klassifikation der hyperbolischen Dodekaederpflasterungen von maximalen flächentransitiven Bewegungsgruppen.) Molnár, Emil (1993) Mathematica Pannonica
Cobordism of automorphisms of surfaces Francis Bonahon (1983) Annales scientifiques de l'École Normale Supérieure
Comparision of the length of infinite geodesics in manifolds with nonpositive curvature. Thórdur Jónsson (1982) Mathematica Scandinavica
Correction to "On a functional equation arising from hyperbolic geometry", Volume 21 (1980), 113-116. Walter Benz (1981) Aequationes mathematicae