%0 Journal Article %A Aguiar, Marcelo %A Lauve, Aaron %T Lagrange's Theorem for Hopf Monoids in Species %J Discrete mathematics & theoretical computer science %D 2011 %V DMTCS Proceedings vol. AO, 23rd International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2011) %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.2887/ %R 10.46298/dmtcs.2887 %G en %F DMTCS_2011_special_260_a0