%0 Journal Article %A Lakser, H. %T Normal and Canonical Representations in Free Products of Lattices† %J Canadian journal of mathematics %D 1970 %P 394-402 %V 22 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-048-3/ %R 10.4153/CJM-1970-048-3 %F 10_4153_CJM_1970_048_3