The Geometry of Two-Weight Codes
Robert Calderbank, William M. Kantor · Bulletin of the London Mathematical Society · 1986
We survey the relationships between two-weight linear [n, k] codes over GF(q), projective (n, k, h1, h2) sets in PG(k − 1, q), and certain strongly regular graphs. We also describe and tabulate essentially all the known examples.