%0 Journal Article %A Ding, Changming %T Orbits connecting singular points in the plane %J Czechoslovak Mathematical Journal %D 2005 %P 125-132 %V 55 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2005__55_1_a7/ %G en %F CMJ_2005__55_1_a7