Unstructured spline spaces for isogeometric analysis based on spline manifolds

@article{Sangalli2016UnstructuredSS,
  title={Unstructured spline spaces for isogeometric analysis based on spline manifolds},
  author={Giancarlo Sangalli and Thomas Takacs and Rafael V{\'a}zquez Hern{\'a}ndez},
  journal={Comput. Aided Geom. Des.},
  year={2016},
  volume={47},
  pages={61-82}
}
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