Many thanks and Goodbye to Professor Koch - welcome to Professor Malluche!

@article{Feistle2009ManyTA,
  title={Many thanks and Goodbye to Professor Koch - welcome to Professor Malluche!},
  author={J{\"o}rg Feistle and Frank Feistle},
  journal={Clinical nephrology},
  year={2009},
  volume={72 1},
  pages={2}
}