%0 Journal Article %A C.S. Hartzman %A D.R. Naugler %T Separatrix conditions yielding either periodic orbits or unusual behavior for flows on M3. %J Aequationes mathematicae %D 1981 %P 175-187 %V 23 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1981__23_136908/ %F AM2_1981__23_136908