A simple en, ex marking rule for degenerate intersection points in 2D polygon clipping. - Romeo Traian Popa; Emilia-Cerna Mladin; Emil Petrescu; Tudor Prisecaru (CoRR, 2017)

Clipping simple polygons with degenerate intersections. - Erich L. Foster; Kai Hormann; Romeo Traian Popa (Comput. Graph. X, 2019)