The geometry of projective blending surfaces
        
        
            
            
            
            
            
            
            Christoph Hoffmann
            
            
            
             
            
            
            
            and 
            
            
            
            
            
            John Hopcroft
            
            
            
            
        
        
        
            Artificial Intelligence - 1988
            
        
        
        
            Artificial Intelligence - 1988
        
        
        Hoffmann, Christoph, and John Hopcroft. “The Geometry of Projective Blending Surfaces.” Artificial Intelligence, vol. 37, no. 1-3, 1988, pp. 357–76, https://doi.org/10.1016/0004-3702(88)90060-4.
        @article{hoffmann1988geometry,
  title = {The geometry of projective blending surfaces},
  author = {Hoffmann, Christoph and Hopcroft, John},
  journal = {Artificial Intelligence},
  volume = {37},
  number = {1-3},
  pages = {357--376},
  year = {1988},
  publisher = {Elsevier},
  doi = {10.1016/0004-3702(88)90060-4},
  pdf = {Hoffmann-Artificial_Intelligence-1988-The_geometry_of_projective_blending_surfaces.pdf}
}