%0 Journal Article %A Igusa, Kiyoshi %T Combinatorial Miller–Morita–Mumford classes and Witten cycles %J Algebraic and Geometric Topology %D 2004 %P 473-520 %V 4 %N 1 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2004.4.473/ %R 10.2140/agt.2004.4.473 %F 10_2140_agt_2004_4_473