The affine plane AG(2,q), q odd, has a unique one point extension.
On M.D.S. codes, arcs in PG(n,q) with q even, and a solution of three fundamental problems of B. Segre.
Half Moufang implies Moufang for finite generalized quadrangles.
Derivation of Flocks of Quadratic Cones.
SPG systems and semipartial geometries.
Collineations of Subiaco and Cherowitzo hyperovals.
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