@article{Machmer2014,
  author    = {Paul Machmer},
  title     = {{\"U}ber eine notwendige Pr{\"a}zisierung der Definition des Isosterie-Begriffs},
  journal   = {Zeitschrift f{\"u}r Naturforschung, B},
  volume    = {30},
  number    = {11-12},
  pages     = {920 -- 921},
  doi       = {10.1515/znb-1975-11-1218},
  year      = {2014},
}