[1] DEMВOVSKI P.:
Finite Geometries. Springeг-Verlag, New York Inc, 1968.
MR 0233275
[2] HUGHES D. R.-PIPER F. C.:
Projective Planes. Springer-Verlag, New Yoгk-Heidelberg-Berlin, 1973.
MR 0333959 |
Zbl 0267.50018
[3] JURGA R.: Thesis. Košice, 1990.
[4] JURGA R.:
Combinatorial properties of conics in the Hjelmslev plane. Math. Slovaca 45 (1995), 219-226.
MR 1361814 |
Zbl 0853.05018
[5] PRIMROSE E. J. E.:
Quadrics in finite geometries. Proc. Cambridge Philos. Soc. 47 (1951), 299-304.
MR 0041460 |
Zbl 0042.38803