1. Old and new in Möbius groups;Ahlfors;Ann. Acad. Sci. Fenn. A I,1984
2. Möbius transformations and Clifford numbers;Ahlfors,1985
3. On the fixed points of Möbius transformations in Rn;Ahlfors;Ann. Acad. Sci. Fenn. A I,1985
4. Clifford numbers and Möbius transformations in Rn;Ahlfors,1986
5. Möbius transformations in Rn expressed through 2×2 matrices of Clifford numbers;Ahlfors;Complex Variables Theory Appl.,1986