@article{UlrichsWinotoMorbachHeringetal.1990,
  author    = {Karin Ulrichs and S. Winoto-Morbach and B. Hering and W. M{\"u}ller-Ruchholtz},
  title     = {A Useful Biotechnological Approach to Solve the Problem of Graft Purity in Human Pancreatic Islet Transplantation},
  year      = {1990},
}