Brown, L. M. A configuration of points and spheres in four-dimensional space. (English) Zbl 0064.14804 Proc. R. Soc. Edinb., Sect. A 64, 145-149 (1955). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:analytic geometry, projective geometry × Cite Format Result Cite Review PDF