Lingenberg, Rolf Metric planes and metric vector spaces / Rolf Lingenberg. - 1a ed. - New York : John wiley and sons, 1979 - 209 p. : ìl. ; 23 cm. - (Pure and applied mathematics) . Incluye bibligrafìa, apèndice e ìndice ISBN: 0471049018 Subjects--Topical Terms: Analisis matematico. LC Class. No.: QA685 / L72 1979