%0 Journal Article %A Arkowitz, Martin %A Strom, Jeffrey %T Homotopy classes that are trivial mod ℱ %J Algebraic and Geometric Topology %D 2001 %P 381-409 %V 1 %N 1 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2001.1.381/ %R 10.2140/agt.2001.1.381 %F 10_2140_agt_2001_1_381