On gravity in Randall-Sundrum models: Andreas Karch, Lisa Randall, Locally Localized Gravity, JHEP 0105:008 (2001) [arXiv:hep-th/0011156, doi:10.1088/1126-6708/2001/05/008] Andreas Karch, Randall-Sundrum Branes and Holography, talk at Strings 2022 [indico:4940841] On AdS/CFT as open/closed string duality and early discussion of the concept of probe branes in AdS/CFT: Introducing the concept of flavor branes for geometric engineering of flavour physics in intersecting D-brane models...