Sangalli, GiancarloTakacs, ThomasVázquez Hernández, Rafael2017-04-032017-04-032017-04-03201610.1016/j.cagd.2016.05.004https://infoscience.epfl.ch/handle/20.500.14299/1363441507.08477Unstructured spline spaces for isogeometric analysis based on spline manifoldstext::journal::journal article::research article