@article{Holub2012,
  author    = {Josef Holub},
  title     = {Some considerations and thoughts on the pragmatic classification of apomictic Rubus taxa : dedicated to Professor Dr. Dr. H. E. Weber on the occasion of his 65th birthday},
  journal   = {Osnabr{\"u}cker naturwissenschaftliche Mitteilungen : Ver{\"o}ffentlichungen des Naturwissenschaftlichen Vereins Osnabr{\"u}ck},
  volume    = {23},
  pages     = {147 -- 155},
  year      = {2012},
}