@phdthesis{Nanthakumar2016,
  author      = {S.S. Nanthakumar},
  title       = {Inverse and optimization problems in piezoelectric materials using Extended Finite Element Method and Level sets},
  type        = {doctoralthesis},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2709},
  year        = {2016},
}