@article{Litynski,
  author    = {Grzegorz S. Litynski},
  title     = {Laparoscopy between the World Wars: the barriers to Trans-Atlantic exchange : spotlighting Heinz Kalk and John C. Ruddock},
  journal   = {Journal of the Society of Laparoendoscopic Surgeons},
  volume    = {1},
  number    = {2},
  pages     = {185 -- 188},
}