@article{Zlamal:1973,
  author =       {Zl\'{a}mal, Milo\v{s}},
  doi =          {10.1137/0710022},
  issn =         {0036-1429},
  journal =      {SIAM Journal on Numerical Analysis},
  month =        mar,
  number =       1,
  pages =        {229--240},
  title =        {{Curved Elements in the Finite Element Method. I}},
  volume =       10,
  year =         1973
}