@book{Boentert2007,
  author    = {Boentert, A.},
  title     = {Kinderarbeit im Kaiserreich (1871-1914) (Dissertation)},
  address   = {Paderborn},
  year      = {2007},
  language  = {de}
}
@book{Boentert2007,
  author    = {Boentert, Annika},
  title     = {Handbuch Prozessqualit{\"a}t. Redaktion Annika Boentert},
  address   = {M{\"u}nster},
  year      = {2007},
  language  = {mul}
}