Pakula, Lewis Regions cut by arrangements of topological spheres. (English) Zbl 0799.52010 Can. Math. Bull. 36, No. 2, 241-244 (1993). Reviewer: H.Martini (Chemnitz) MSC: 52C35 51M20 05A99 PDFBibTeX XMLCite \textit{L. Pakula}, Can. Math. Bull. 36, No. 2, 241--244 (1993; Zbl 0799.52010) Full Text: DOI
Wilker, J. B. Inversive geometry and certain chains of circles. (English) Zbl 0487.51016 C. R. Math. Acad. Sci., Soc. R. Can. 3, 37-42 (1981). MSC: 51M05 05B10 PDFBibTeX XMLCite \textit{J. B. Wilker}, C. R. Math. Acad. Sci., Soc. R. Can. 3, 37--42 (1981; Zbl 0487.51016)