@inproceedings{bib:bidarra:1998,
    author       = { Bidarra, Rafael and Bronsvoort, Willem F. },    
    title        = { Validity maintenance of models with interacting features   },
    booktitle    = { In Proceedings of Eighth Portuguese Conference on Computer Graphics },
    editors      = { Sousa, A and Teixeira, J },
    year         = { 1998 },
    pages        = { 65--79 },
    address      = { Coimbra, Portugal },
    url          = { https://publications.graphics.tudelft.nl/papers/777 },
}