%0 Journal Article %A GROMADZKI, GRZEGORZ %A KOZŁOWSKA-WALANIA, EWA %T ON FIXED POINTS OF DOUBLY SYMMETRIC RIEMANN SURFACES %J Glasgow mathematical journal %D 2008 %P 371-378 %V 50 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089508004278/ %R 10.1017/S0017089508004278 %F 10_1017_S0017089508004278