@article{536,
  author = {Leonard Gray and Glaucio Paulino},
  title = {Symmetric Galerkin boundary integral formulation for interface and multi-zone problems},
  year = {1997},
  journal = {International Journal for Numerical Methods in Engineering},
  volume = {40},
  number = {16},
  pages = {3085{\textendash}3101},
  publisher = {Wiley Online Library},
}