%0 Journal Article %A Loday, Jean-Louis %A Ronco, MarĂ­a O. %T Order structure on the algebra of permutations and of planar binary trees %J Journal of Algebraic Combinatorics %D 2002 %P 253-270 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JAC_2002__15_3_a2/ %G en %F JAC_2002__15_3_a2