%0 Journal Article %A Skula, Ladislav %T Maximal reflectivity preserving subextensions %J Communications in Mathematics %D 1993 %P 59-66 %V 01 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/COMIM_1993__1_1_a6/ %G en %F COMIM_1993__1_1_a6