%0 Journal Article %A Beauregard, Raymond A. %T On the Inversion of Right Invariant Elements %J Canadian mathematical bulletin %D 1975 %P 289-290 %V 18 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-054-x/ %R 10.4153/CMB-1975-054-x %F 10_4153_CMB_1975_054_x