@InProceedings{Michalak:1988,
  author  = "D. Michalak",
  title       = "An algorithm for binding number of pseudobivariegated tress",
  booktitle   = "33. Internationales Wissenschaftliches Kolloquium",
  address     = "Ilmenau, Niemcy",
  publisher   = "Ilmenau, [brak wydawcy]",
  pages       = "233--235",
  year        = "1988",
}