The Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig is the national metrology institute of the Federal Republic of Germany Stock Photo - Alamy
PTB - "Physikalisch-Technische Bundesanstalt, Braunschweig" by AcronymsAndSlang.com
Job Opening for experimental physicist with a doctorate at PTB Braunschweig – European Nuclear Education Network
File:BS PTB Haupteinfahrt.JPG - Wikimedia Commons
The Braunschweig site - PTB.de
Vorhang auf: Tag der offenen Tür in der PTB | regionalHeute.de
Braunschweig, Lower Saxona, Germany, August 8., 2018: Cyclotron of the PTB Particle Accelerator for the Emission of Neutrons. Editorial Stock Photo - Image of atom, august: 137083478