%0 Journal Article %A Heinz Leutwiler %T More on modified quaternionic analysis in R3. %J Forum mathematicum %D 1995 %P 279-306 %V 7 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FORUM_1995__7_1_186422/ %F FORUM_1995__7_1_186422