“…In [18,21,22,23,40,1,29,32,45,49,30,31,38,28], the classifications of flows on closed 2-manifolds and [5,19,32,29,25,37,38] on manifolds with the boundary were obtained. Topological properties of Morse-Smale vector fields on 3-manifolds was investigated in [46,48,36,24,49,26,27,11,4,3].…”