%0 Journal Article %A John S. Wilson %A Chiara Tamburini %T A Residual Property of Certain Free Products. %J Mathematische Zeitschrift %D 1984 %P 525-530 %V 186 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1984__186_173462/ %F MZ_1984__186_173462