Magma output for 'Explicit Schoen surfaces' here.

Magma code for 'Cuspidal quintics and surfaces with $p_g=0$, $K^2=3$ and $5$-torsion' here.

Magma code for 'Hyperelliptic surfaces with $K^2<4\chi-6' here.

Magma code for 'On the computation of singular plane curves and quartic surfaces' here.

Magma code for 'Involutions on surfaces with $p_g=q=0$ and $K^2=3$' here.