Enumeration of Symmetric Designs (25,9,3)

There are just 78 symmetric designs for which ν = 25, κ =9 and λ = 3. Three of them have the property of being self-dual but not self-polar.

[1]  Jacobus H. van Lint,et al.  Ovals in Projective Designs , 1979, J. Comb. Theory, Ser. A.

[2]  Fred Piper,et al.  Some Designs Which Admit Strong Tactical Decompositions , 1977, J. Comb. Theory, Ser. A.