@article{HeuermannErkens2004,
  author    = {Heuermann, Holger and Erkens, Holger},
  title     = {Blocking structures for mixed-mode systems. / Erkens, Holger ; Heuermann, Holger},
  series = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association. Vol. 1},
  journal   = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association. Vol. 1},
  publisher = {Horizon House Publ.},
  address   = {London},
  isbn      = {1-580-53992-0},
  pages     = {297 -- 300},
  year      = {2004},
  language  = {en}
}