1. R.D. Baker and G.L. Ebert, Intersection of unitals in the Desarguesian plane, preprint.
2. Complete arcs in planes of square order;Fisher,1986
3. Projective Planes;Hughes,1973
4. Characterization of Hermitian curves;Lefevre-Percsy;Arch. Math.,1982
5. Unitäre Polaritäten endlicher projektiver Ebenen;Seib;Arch. Math.,1970