@article {LRD16,
	title = {Data processing for the sandwiched R{\'e}nyi divergence: a condition for equality},
	journal = {Letters in Mathematical Physics},
	volume = {107},
	number = {1},
	year = {2017},
	pages = {61{\textendash}80},
	keywords = {diss},
	doi = {10.1007/s11005-016-0896-9},
	author = {Leditzky, Felix and Rouz{\'e}, Cambyse and Datta, Nilanjana}
}
