On user-defined features
        
        
            
            
            
            
            
            
            Christoph M Hoffmann
            
            
            
             
            
            
            
            and 
            
            
            
            
            
            Robert Joan-Arinyo
            
            
            
            
        
        
        
            Computer-Aided Design - 1998
            
        
        
        
            Computer-Aided Design - 1998
        
        
        Hoffmann, Christoph M., and Robert Joan-Arinyo. “On User-Defined Features.” Computer-Aided Design, vol. 30, no. 5, 1998, pp. 321–32, https://doi.org/10.1016/S0010-4485(97)00048-1.
        @article{hoffmann1998user,
  title = {On user-defined features},
  author = {Hoffmann, Christoph M and Joan-Arinyo, Robert},
  journal = {Computer-Aided Design},
  volume = {30},
  number = {5},
  pages = {321--332},
  year = {1998},
  publisher = {Elsevier},
  doi = {10.1016/S0010-4485(97)00048-1},
  pdf = {Hoffmann-Computer_aided_Design-1998-On_User-defined_Features.pdf}
}