Towards an improvement in the spectral description of central stars of planetary nebulae

1. Weidmann, W.
2. Gamen, R.
3. Mast, D.
4. Fariña, C.
5. Gimeno, G.
6. Schmidt, E.O.
7. Ashley, R.P.
8. Peralta de Arriba, L.
9. Sowicka, P.
10. Ordonez-Etxeberria, I.