Precise global collision detection in multi-axis NC-machining @article{ehikw-pgcdm-05 , author = "G. Elber and D. Halperin and O. Ilushin and M.-S. Kim and R. Wein" , title = "Precise global collision detection in multi-axis NC-machining" , journal = "Computer-Aided Design" , volume = "37" , issue = "9" , year = 2005 , pages = "909--920" }