00776nam0-22002651i-450-990001280580403321000128058FED01000128058(Aleph)000128058FED0100012805820000920d1976----km-y0itay50------baengGeometry of spheres in normed spacesby Schaffer Juan JorgeNew York [etc.]Marcel Dekker1976Lecture Notes in Pure and normed Applied Ma thematics, 20Schäffer,Juan Jorge344585ITUNINARICAUNIMARCBK990001280580403321C-7-(2020434MA1MA1Geometry of spheres in normed spaces82270UNINAING01