@phdthesis{Reichel1994,
  author    = {Reichel, Mario},
  title     = {Bi-Homonorphismen und Hyperidentit{\"a}ten},
  publisher = {Univ.},
  address   = {Potsdam},
  pages     = {VI, 132, III Bl.},
  year      = {1994},
  language  = {de}
}