@article{HoppeYousept2014,
  author    = {Ronald H. W. Hoppe and Irwin Yousept},
  title     = {Adaptive edge element approximation of H(curl)-elliptic optimal control problems with control constraints},
  journal   = {BIT Numerical Mathematics},
  volume    = {55},
  number    = {1},
  pages     = {255 -- 277},
  doi       = {10.1007/s10543-014-0497-x},
  year      = {2014},
}