@article{TrendelenburgScheerZentgrafetal.1976,
  author    = {Michael F. Trendelenburg and Ulrich Scheer and Hanswalter Zentgraf and Werner W. Franke},
  title     = {Heterogeneity of spacer lengths in circles of amplified ribosomal DNA of two insect species, Dytiscus marginalis and Acheta domesticus},
  year      = {1976},
}