%0 Journal Article %A Tamanoi, Hirotaka %T Generalized orbifold Euler characteristics of symmetric orbifolds and covering spaces %J Algebraic and Geometric Topology %D 2003 %P 791-856 %V 3 %N 2 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2003.3.791/ %R 10.2140/agt.2003.3.791 %F 10_2140_agt_2003_3_791