Parametrization of the moduli space of hyperelliptic and symmetric Riemann surfaces. Costa, A.F.; Martínez, E. — 1997 Annales Academiae Scientiarum Fennicae. Mathematica
Application of Hoare's theorem to symmetries of Riemann surfaces. Bujalance, E.; Costa, A.F.; Singerman, D. — 1993 Annales Academiae Scientiarum Fennicae. Series A I. Mathematica
Period matrices of Accola-MacLachlan and Kulkarni surfaces. Bujalance, E.; Costa, A.F.; Gamboa, J.M.; Riera, G. — 2000 Annales Academiae Scientiarum Fennicae. Mathematica
An Algorithm To Compute Odd Orders and Ramification Indices of Cyclic Actions on Compact Surfaces. E. Bujalance; J.M. Gamboa; A.F. Costa; J. Lafuente — 1994 Discrete & computational geometry