%0 Journal Article %A Tokunaga, Hiro-o %T On Dihedral Galois Coverings %J Canadian journal of mathematics %D 1994 %P 1299-1317 %V 46 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-074-4/ %R 10.4153/CJM-1994-074-4 %F 10_4153_CJM_1994_074_4