%0 Journal Article %A Hackney, Philip %A Robertson, Marcy %A Yau, Donald %T Relative left properness of colored operads %J Algebraic and Geometric Topology %D 2016 %P 2691-2714 %V 16 %N 5 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.2691/ %R 10.2140/agt.2016.16.2691 %F 10_2140_agt_2016_16_2691