@article{HoppeWohlmuth1995,
  author    = {Ronald H. W. Hoppe and Barbara Wohlmuth},
  title     = {Adaptive multilevel iterative techniques for nonconforming finite element discretizations},
  journal   = {East-West Journal of Numerical Mathematics},
  volume    = {3},
  number    = {3},
  pages     = {179 -- 197},
  year      = {1995},
}