%0 Journal Article %A Lekili, Yankı %T Planar open books with four binding components %J Algebraic and Geometric Topology %D 2011 %P 909-928 %V 11 %N 2 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2011.11.909/ %R 10.2140/agt.2011.11.909 %F 10_2140_agt_2011_11_909