1. Hirschfeld, J.W.P., Projective Geometries over Finite Fields, Oxford: Clarendon; New York: Oxford Univ. Press, 1998, 2nd ed.
2. Segre, B., Le geometrie di Galois, Ann. Mat. Pura Appl., 1959, vol. 48, no. 1, pp. 1–96.
3. Segre, B., Introduction to Galois Geometries, Atti Accad. Naz. Lincei Mem. Cl. Sci. Fis. Mat. Natur. Sez. I (8), 1967, vol. 8, no. 5, pp. 133–236.
4. Hirschfeld, J.W.P. and Storme, L., The Packing Problem in Statistics, Coding Theory and Finite Projective Spaces, J. Statist. Plann. Inference, 1998, vol. 72, no. 1–2, pp. 355–380.
5. Dev. Math.;JWP Hirschfeld,2001