%0 Journal Article %A Fischer, Hanspeter %T Pullbacks of generalized universal coverings %J Algebraic and Geometric Topology %D 2007 %P 1379-1388 %V 7 %N 3 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2007.7.1379/ %R 10.2140/agt.2007.7.1379 %F 10_2140_agt_2007_7_1379