Quadratic immersed finite element spaces and their approximation capabilities

@article{Camp2006QuadraticIF,
  title={Quadratic immersed finite element spaces and their approximation capabilities},
  author={Brian Camp and Tao Lin and Yanping Lin and Weiwei Sun},
  journal={Adv. Comput. Math.},
  year={2006},
  volume={24},
  pages={81-112}
}