@article{tropp_2012, 
  title={From joint convexity of quantum relative entropy to a concavity theorem of Lieb}, 
  volume={140}, 
  DOI={10.1090/s0002-9939-2011-11141-9}, 
  publisher={American Mathematical Society (AMS)}, 
  author={Tropp}, 
  year={2012}, 
  month={May}
  }