@article{Litynski1997,
  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},
  url       = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3021276/},
  year      = {1997},
}