@misc{KubaPanholzer,
  author    = {Kuba, Markus and Panholzer, Alois},
  title     = {Combinatorial analysis of growth models for series-parallel networks.},
  subject      = {Mathematics},
  language  = {en}
}
@misc{Kuba,
  author    = {Kuba, Markus},
  title     = {Limit laws for urn models with multiple drawings},
  subject      = {Urn Models},
  language  = {en}
}