%0 Journal Article %A V. V. Shevchishin %T Lagrangian embeddings of the Klein bottle and combinatorial properties of mapping class groups %J Izvestiya. Mathematics %D 2009 %P 797-859 %V 73 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2009_73_4_a5/ %G en %F IM2_2009_73_4_a5