%0 Journal Article %A M.D. FRIED %A R.E. MACRAE %T On Curves with Separated Variables. %J Mathematische Annalen %D 1969 %P 220-226 %V 180 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1969__180_161799/ %F MAN_1969__180_161799