%0 Journal Article %A Mariusz LemaƄczyk %T Factors of coalescent automorphisms %J Studia Mathematica %D 1988 %P 159-168 %V 89 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-89-2-159-168/ %R 10.4064/sm-89-2-159-168 %G en %F 10_4064_sm_89_2_159_168