Loxodromic Sequences of Tangent Spheres. (Short Communication). H.S.M. Coxeter — 1968 Aequationes mathematicae
Star polytopes and the Schläfli function f(..., ..., ...). H.S.M. Coxeter — 1989 Elemente der Mathematik
Generators and relations for discrete groups (JAKOB NIELSEN) H.S.M. COXETER; W.O.J. MOSER — 1957 Mathematica Scandinavica