RT Journal Article T1 Double coverings of hyperelliptic Klein surfaces A1 Bujalance García, Emilio A1 Etayo Gordejuela, José Javier A1 Gamboa Mutuberria, José Manuel AB Elliptic-hyperelliptic, normal, unramified, double coverings of bordered hyperelliptic Klein surfaces are considered here, using methods of the theory on non-Euclidean crystallographic groups. Complete proofs will appear elsewhere PB Univ. Toronto Dept. Math. SN 0706-1994 YR 1987 FD 1987 LK https://hdl.handle.net/20.500.14352/64650 UL https://hdl.handle.net/20.500.14352/64650 DS Docta Complutense RD 6 abr 2025