%0 Journal Article
%A Berrick, A J
%A Davydov, A A
%T Splitting of Gysin extensions
%J Algebraic and Geometric Topology
%D 2001
%P 743-762
%V 1
%N 2
%U http://geodesic.mathdoc.fr/articles/10.2140/agt.2001.1.743/
%R 10.2140/agt.2001.1.743
%F 10_2140_agt_2001_1_743