Postnikov, M. M. Lectures in geometry. Semester I: Analytic geometry. (Lektsii po geometrii. Semester I: Analiticheskaya geometriya). 2nd ed. (Russian) Zbl 0662.51001 Moskva: Nauka. 416 p. R. 1.00 (1986). MSC: 51-01 51N10 51N15 15-01 PDFBibTeX XML
Jeger, M. Die Gewinnung der Grundformen der sphärischen Trigonometrie aus der stereographischen Projektion. (Obtaining of the fundamental formulae of the spherical trigonometry by means of the stereographic projection). (German) Zbl 0607.51005 Elem. Math. 41, 120-125 (1986). Reviewer: A.Szybiak MSC: 51B05 PDFBibTeX XMLCite \textit{M. Jeger}, Elem. Math. 41, 120--125 (1986; Zbl 0607.51005) Full Text: EuDML
Eneva, Gergana On the special normal surfaces of the 5-dimensional projective space. (Russian. English, German summaries) Zbl 0606.51018 God. Sofij. Univ., Fak. Mat. Mekh. 74(1980), 7-9 (1986). MSC: 51N15 PDFBibTeX XMLCite \textit{G. Eneva}, God. Sofiĭ. Univ., Fak. Mat. Mekh. 74, 7--9 (1986; Zbl 0606.51018)
Schwarz, Binyamin; Zaks, Abraham Geometries of the projective matrix space. II. (English) Zbl 0599.51008 J. Algebra 103, 686-707 (1986). Reviewer: R.Koch MSC: 51B10 51N25 20H20 51M05 51M10 PDFBibTeX XMLCite \textit{B. Schwarz} and \textit{A. Zaks}, J. Algebra 103, 686--707 (1986; Zbl 0599.51008) Full Text: DOI