Studies on Systems of Six Lines on a Projective Plane over a Prime Field
Jiro Sekiguchi

References
1.	B. Grünbaum, Convex Polytopes, Interscience Publ. John Willey & Sons, New York, 1967
2.	J. Sekiguchi, M. Yoshida, “$W(E_6)$-action on the configuration space of 6 points of the real projective plane”, Kyushu J. Math., 51 (1997), 297–354
3.	I. Naruki, “Cross ratio variety as a moduli space of cubic surfaces”, Proc. London Math. Soc., 45 (1982), 1–30