@article{1006,
  author = {Glaucio Paulino and Anderson Pereira and Ivan Menezes},
  title = {Polygonal finite elements for topology optimization: A unifying paradigm},
  year = {2010},
  journal = {International journal for numerical methods in engineering},
  volume = {82},
  number = {6},
  pages = {671{\textendash}698},
  publisher = {Wiley Online Library},
}